1/4 1/16 1/64 1/256 ⋯

1/4 + 1/16 + 1/64 + 1/256 + ⋯

1 − 2 + 3 − 4 + ⋯

1/2 − 1/4 + 1/8 − 1/16 + ⋯

1/2 + 1/4 + 1/8 + 1/16 + ⋯

1 + 2 + 3 + 4 + ⋯

4-alpha-D-((1-4)-alpha-D-glucano)trehalose trehalohydrolase

(1-4)-a-D-glucan 1-a-D-glucosylmutase

1-phosphatidylinositol 4-kinase

GlcA-beta-(1-2)-D-Man-alpha-(1-3)-D-Glc-beta-(1-4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 4-beta-mannosyltransferase

4-Phenyl-4-(1-piperidinyl)cyclohexanol

Minolta AF 35mm f/1.4

1 + 2 + 4 + 8 + ⋯

1 − 2 + 4 − 8 + ⋯

4-hydroxyphenylpyruvate decarboxylase

4-hydroxyphenylacetate decarboxylase

4-hydroxyphenylacetate 1-monooxygenase

Beta-D-galactosyl-(1-4)-L-rhamnose phosphorylase

4-Methyl-1-pentene

4-Hydroxycyclohexanecarboxylate dehydrogenase

4-Nitroquinoline 1-oxide

1-Bromo-4-iodobenzene

Lactosylceramide 4-alpha-galactosyltransferase

Chondro-4-sulfatase

4-Amino-1-butanol

D-Man-alpha-(1-3)-D-Glc-beta-(1-4)-D-Glc-alpha-1-diphosphoundecaprenol 2-beta-glucuronyltransferase

Scyllo-inosamine-4-phosphate amidinotransferase

4-hydroxybenzoate decarboxylase

4-aminobenzoate 1-monooxygenase

4-hydroxybenzoate 1-hydroxylase

Guanidinodeoxy-scyllo-inositol-4-phosphatase

Flavanone 4-reductase

WNP-1 and WNP-4

4-Hydroxybutyrate dehydrogenase

Aspartate 4-decarboxylase

SaudiGeoSat-1/HellasSat-4

1-Aminocyclopropane-1-carboxylate synthase

4-pyridoxolactonase

4-oxalocrotonate decarboxylase

Exo-(1-4)-α-D-glucan lyase

GalNAc-alpha-(1-4)-GalNAc-alpha-(1-3)-diNAcBac-PP-undecaprenol alpha-1,4-N-acetyl-D-galactosaminyltransferase

4-hydroxythreonine-4-phosphate dehydrogenase

Minolta AF 50mm f/1.4

N-acetylglucosaminyl-proteoglycan 4-beta-glucuronosyltransferase

4-phosphoerythronate dehydrogenase

4-Sulfomuconolactone hydrolase

4+1 architectural view model

1-phosphatidylinositol-4-phosphate 5-kinase

1-(4-(Trifluoromethyl)phenyl)piperazine

1-pyrroline-4-hydroxy-2-carboxylate deaminase

4-Nitrocatechol 4-monooxygenase

Samyang 85mm f/1.4 IF Aspherical

4-Nitrophenol 4-monooxygenase

Fever Dreams Pts 1–4

4-alpha-glucanotransferase

4-trimethylammoniobutyraldehyde dehydrogenase

Phosphatidylinositol-4,5-bisphosphate 4-phosphatase

4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase

4-Hydroxy-1-methyl-4-(4-methylphenyl)-3-piperidyl 4-methylphenyl ketone

Glucuronyl-galactosyl-proteoglycan 4-a-N-acetylglucosaminyltransferase

4-hydroxymandelate oxidase

Pyridoxal 4-dehydrogenase

Cis-1,2-dihydroxy-4-methylcyclohexa-3,5-diene-1-carboxylate dehydrogenase

Pantoate 4-dehydrogenase

1-(5-phosphoribosyl)-5-((5-phosphoribosylamino)methylideneamino)imidazole-4-carboxamide isomerase

Peptidyl-glutamate 4-carboxylase

4-(hydroxymethyl)benzenesulfonate dehydrogenase

Polygalacturonate 4-alpha-galacturonosyltransferase

Samsung Galaxy Tab 4 10.1

4-oxoproline reductase

Dihydrokaempferol 4-reductase

N-benzoyl-4-hydroxyanthranilate 4-O-methyltransferase

Oligosaccharide 4-alpha-D-glucosyltransferase

NTS Sessions 1–4

4-methyloxaloacetate esterase

5-dehydro-4-deoxyglucarate dehydratase

4-hydroxy-4-methyl-2-oxoglutarate aldolase

U.S. Route 1 in Georgia

4-hydroxyphenylacetaldehyde dehydrogenase

4-hydroxyacetophenone monooxygenase

4-formylbenzenesulfonate dehydrogenase

4-hydroxybenzoate 4-O-beta-D-glucosyltransferase

(6-4)DNA photolyase

Lego Harry Potter: Years 1–4

L-2-amino-4-chloropent-4-enoate dehydrochlorinase

Scyllo-inosamine 4-kinase

Episode 4 (Humans series 1)

Homunculus Parts 1–4 + Ritual

4-Cresol dehydrogenase (hydroxylating)

Dermatan 4-sulfotransferase

1-phosphatidylinositol-5-phosphate 4-kinase

2-hydroxy-4-carboxymuconate semialdehyde hemiacetal dehydrogenase

Glucuronosyl-N-acetylglucosaminyl-proteoglycan 4-alpha-N-acetylglucosaminyltransferase

(R)-4-hydroxyphenyllactate dehydrogenase

Pyridoxine 4-dehydrogenase

Chalcone 4'-O-glucosyltransferase

4-hydroxybutanoyl-CoA dehydratase

Isoflavone 4'-O-methyltransferase

2024–25 Liga 4 West Java Series 1

(1-hydroxycyclohexan-1-yl)acetyl-CoA lyase

Pyridoxine 4-oxidase

(+)-Caryolan-1-ol synthase

4-hydroxyproline epimerase

Beta-apo-4'-carotenal oxygenase

Hydroxycinnamate 4-beta-glucosyltransferase

Lactotriaosylceramide beta-1,4-galactosyltransferase

Flavonoid 4'-O-methyltransferase

UDP-4-amino-4-deoxy-L-arabinose formyltransferase

DTDP-4-dehydrorhamnose reductase

2,7,4'-Trihydroxyisoflavanone 4'-O-methyltransferase

Inositol 4-methyltransferase

Glucomannan 4-beta-mannosyltransferase

Endo-1,3(4)-β-glucanase

3-Galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase

4-Methylcyclohexanemethanol

Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase

Phosphatidylinositol-3,4-bisphosphate 4-phosphatase

3,7-dimethylquercetin 4'-O-methyltransferase

1-Androstenedione

N-acetylgalactosamine-4-sulfatase

4-hydroxy-tetrahydrodipicolinate reductase

1 fille & 4 types

South African Class Experimental 1 4-6-2

Piano Concertos Nos. 1–4 (Mozart)

4-oxalmesaconate hydratase

Aspartate 1-decarboxylase

4-(dimethylamino)phenylazoxybenzene reductase

4-Hydroxyphenylacetate 3-monooxygenase

Peptidase 1 (mite)

4-hydroxymuconic-semialdehyde dehydrogenase

4-carboxymuconolactone decarboxylase

GDP-4-dehydro-D-rhamnose reductase

D-arabinitol 4-dehydrogenase

Sphinganine-1-phosphate aldolase

Mosbach–Mudau Nos. 1 to 4

1-(3-Chlorophenyl)-4-(2-phenylethyl)piperazine

Erythrose-4-phosphate dehydrogenase

4-Dimethylallyltryptophan N-methyltransferase

2-oxopent-4-enoate hydratase

4-Methylphenylisobutylamine

Pseudooxynicotine oxidase

Gellan tetrasaccharide unsaturated glucuronyl hydrolase

4-hydroxy-2-oxoglutarate aldolase

Globotriaosylceramide 3-beta-N-acetylgalactosaminyltransferase

3-hydroxy-2-methylpyridine-4,5-dicarboxylate 4-decarboxylase

4-hydroxybenzoate polyprenyltransferase

Xylosylprotein 4-beta-galactosyltransferase

Methylthioribulose 1-phosphate dehydratase

L-arabinitol 4-dehydrogenase

Luteolin-7-O-diglucuronide 4'-O-glucuronosyltransferase

Kaempferol 4'-O-methyltransferase

South African Class 1 4-8-0

4-nitrophenylphosphatase

Octopamine dehydratase

3-(4-Hydroxymethylbenzoyl)-1-pentylindole

GalNAc5-diNAcBac-PP-undecaprenol beta-1,3-glucosyltransferase

Radio 1's Live Lounge – Volume 4

USS Argonaut (SM-1)

Glucosaminylgalactosylglucosylceramide beta-galactosyltransferase

CDP-4-dehydro-6-deoxyglucose reductase

GDP-6-deoxy-D-talose 4-dehydrogenase

Phosphatidylinositol-4-phosphate 3-kinase

Android Jelly Bean

DTDP-6-deoxy-L-talose 4-dehydrogenase (NAD+)

Glucosylceramide beta-1,4-galactosyltransferase

Glucose-1-phospho-D-mannosylglycoprotein phosphodiesterase

Glucuronylgalactosylproteoglycan 4-b-N-acetylgalactosaminyltransferase

Chrysler 1.8, 2.0 & 2.4 engine

UDP-4-amino-4-deoxy-L-arabinose aminotransferase

Phosphopantothenoylcysteine decarboxylase

Cycling at the 2008 Summer Paralympics – Women's individual pursuit (LC 1–2/CP 4)

Xyloglucan 4-glucosyltransferase

Glucuronoxylan 4-O-methyltransferase

Starch synthase (maltosyl-transferring)

4-Hydroxy-3-methylbut-2-enyl diphosphate reductase

4-Nonanoylmorpholine

Hydroxyglutamate decarboxylase