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A173945 a(n) = numerator of (Pi^2)/2 - Zeta[2,(2n-1)/2]. 13
0, 4, 40, 1036, 51664, 469876, 57251896, 9723595324, 1951933472, 565732015028, 204698374253288, 205082390523068, 108657935761675952, 13600159324521635284, 122539685111374820056, 103156660296672018389596 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For denominators are A120268

LINKS

Table of n, a(n) for n=1..16.

MATHEMATICA

Table[Numerator[Pi^2/2 - Zeta[2, x/2]], {x, 1, 40, 2}]

CROSSREFS

Sequence in context: A012957 A012977 A013108 * A111846 A102922 A139688

Adjacent sequences:  A173942 A173943 A173944 * A173946 A173947 A173948

KEYWORD

nonn,frac

AUTHOR

Artur Jasinski, Mar 03 2010

STATUS

approved

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