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’s criterion for Fermat’s Last Theorem
linked to: Kummer congruences

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 Jacob Bernoulli
linked to: Jakob 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)
OEIS:A164555 (Bernoulli numbers B_n)
linked to: Bernoulli numbers
signPattern even-indexed Bernoulli numbers alternate in sign
usedIn Euler–Maclaurin summation formula
Faulhaber’s formula for sums of powers of integers
linked to: Bernoulli numbers

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

How these facts were elicited

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 Faulhaber's formula
linked to: Bernoulli numbers
Jakob Bernoulli knownFor Bernoulli numbers
subject linked to: Bernoulli
Bernoulli numbers usedIn Faulhaber’s formula for sums of powers of integers
linked to: Bernoulli numbers
Bernoulli numbers sequenceID OEIS:A164555 (Bernoulli numbers B_n)
linked to: Bernoulli numbers