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A117973 Denominator of Zeta'[ -2n]. +0
3
4, 4, 8, 4, 8, 8, 16, 4, 8, 8, 16, 8, 16, 16, 32, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32, 32, 64, 8, 16, 16, 32, 16, 32, 32, 64, 16, 32, 32, 64, 32, 64, 64, 128, 4, 8, 8, 16, 8, 16, 16, 32, 8, 16, 16, 32, 16, 32 (list; graph; listen)
OFFSET

1,1

COMMENT

a[1..31]=A001316[33..63] - Stephen Crowley (crow(AT)crowlogic.net), Mar 21 2007

LINKS

Eric Weisstein's World of Mathematics, Riemann Zeta Function

EXAMPLE

-Zeta[3]/(4*Pi^2), (3*Zeta[5])/(4*Pi^4), (-45*Zeta[7])/(8*Pi^6), (315*Zeta[9])/(4*Pi^8), (-14175*Zeta[11])/(8*Pi^10), ...

MATHEMATICA

Denominator[(2*n)!/2^(2*n + 1)(-1)^n

CROSSREFS

Cf. A117972.

Cf. A001316.

Sequence in context: A140874 A021227 A040013 this_sequence A082075 A095727 A060457

Adjacent sequences: A117970 A117971 A117972 this_sequence A117974 A117975 A117976

KEYWORD

nonn,frac

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), Apr 06, 2006

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.


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