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A046968 Numerators of coefficients in Stirling's expansion for ln Gamma(z). 5
1, -1, 1, -1, 1, -691, 1, -3617, 43867, -174611, 77683, -236364091, 657931, -3392780147, 1723168255201, -7709321041217, 151628697551, -26315271553053477373, 154210205991661, -261082718496449122051, 1520097643918070802691 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

A001067(n)=a(n) if n<574; A001067(574)=37*a(574). - Michael Somos Feb 01 2004

REFERENCES

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math.Series 55, Tenth Printing, 1972, p. 257, Eq. 6.1.41.

L. V. Ahlfors, Complex Analysis, McGraw-Hill, 1979, p. 205

LINKS

Table of n, a(n) for n=1..21.

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math.Series 55, Tenth Printing, 1972, p. 257, Eq. 6.1.41.

Index entries for sequences related to Bernoulli numbers.

Eric Weisstein's World of Mathematics, Stirling's Series

FORMULA

From numerator of Jk(z) = (-1)^(k-1)*Bk/(((2k)*(2k-1))*z^(2k-1)), so Gamma(z) = sqrt(2pi)*z^(z-0.5)*exp(-z)*exp(J(z))

MATHEMATICA

Table[ Numerator[ BernoulliB[2n]/(2n(2n - 1))], {n, 1, 22}] (from Robert G. Wilson v Feb 03 2004)

PROG

(PARI) a(n)=if(n<1, 0, numerator(bernfrac(2*n)/(2*n)/(2*n-1)))

CROSSREFS

Cf. A046969. Similar to but different from A001067. See A090495, A090496.

Denominators given by A046969.

Sequence in context: A120082 A120084 A141588 * A001067 A141590 A046988

Adjacent sequences:  A046965 A046966 A046967 * A046969 A046970 A046971

KEYWORD

frac,sign,nice,changed

AUTHOR

Douglas Stoll, dougstoll(AT)email.msn.com

EXTENSIONS

More terms from Frank Ellermann, Jun 13 2001

STATUS

approved

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Last modified May 19 15:27 EDT 2013. Contains 225433 sequences.