Bernoulli numbers

E141076

Bernoulli numbers are a sequence of rational numbers that play a central role in number theory and analysis, especially in formulas for sums of powers of integers and in the study of special functions like the Riemann zeta function.

All labels observed (4)

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Statements (49)

Predicate Object
instanceOf mathematical constant sequence
sequence of rational numbers
alsoKnownAs B_n
application analytic continuation of zeta-type functions
evaluation of sums of integer powers
B_0 1
B_1 -1/2
B_10 5/66
B_12 -691/2730
B_2 1/6
B_3 0
B_4 -1/30
B_5 0
B_6 1/42
B_7 0
B_8 -1/30
B_9 0
connectedTo Kummer congruences
surface form: Kummer’s criterion for Fermat’s Last Theorem

irregular primes
definedAs coefficients in the Taylor expansion of x/(e^x - 1)
definitionFormula x/(e^x - 1) = \sum_{n=0}^{\infty} B_n x^n / n!
field mathematical analysis
number theory
firstAppearance Ars Conjectandi
generalization Bernoulli polynomials
p-adic Bernoulli numbers
generatingFunction t/(e^t - 1)
growthProperty absolute values grow roughly like (2n)!/(2\pi)^{2n}
indexDomain nonnegative integers
introducedBy Jakob Bernoulli
surface form: Jacob Bernoulli
notablePrime 691 divides numerator of B_12
parityProperty B_n = 0 for all odd n > 1
recurrenceRelation \sum_{k=0}^{n} {n+1 \choose k} B_k = 0 for n \ge 1
relatedTo Bernoulli polynomials
Riemann zeta function
Stirling numbers
sequenceID OEIS:A027641 (even-indexed Bernoulli numbers)
Bernoulli numbers self-linksurface differs
surface form: OEIS:A164555 (Bernoulli numbers B_n)
signPattern even-indexed Bernoulli numbers alternate in sign
usedIn Euler–Maclaurin summation formula
Bernoulli numbers self-linksurface differs
surface form: Faulhaber’s formula for sums of powers of integers

asymptotic expansions of special functions
expansion of log(\Gamma(x))
expansion of the Riemann zeta function at negative integers
series for the cotangent function
series for the tangent function
valueType rational numbers
yearOfIntroduction 1713
zetaRelation \zeta(1-n) = -B_n/n for n \ge 1

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Referenced by (7)

Full triples — surface form annotated when it differs from this entity's canonical label.

Jakob Bernoulli knownFor Bernoulli numbers
Jakob Bernoulli notableConcept Bernoulli numbers
Euler–Maclaurin summation formula uses Bernoulli numbers
Euler–Maclaurin summation formula relatedTo Bernoulli numbers
this entity surface form: Faulhaber's formula
Bernoulli knownFor Bernoulli numbers
subject surface form: Jakob Bernoulli
Bernoulli numbers usedIn Bernoulli numbers self-linksurface differs
this entity surface form: Faulhaber’s formula for sums of powers of integers
Bernoulli numbers sequenceID Bernoulli numbers self-linksurface differs
this entity surface form: OEIS:A164555 (Bernoulli numbers B_n)