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A228426
Numerator of Sum(i=1..n-1, 1/i^(2*n-1)).
2
0, 1, 33, 282251, 5170139875, 36297634492764230063, 43540989124396091246149, 248033379485570104849994099153187946961, 17204019459451797001978107903201762504044841332131
OFFSET
1,3
COMMENTS
For prime p, p^3 divides a(p), see A130681.
LINKS
Eric Weisstein's World of Mathematics, Wolstenholme's Theorem
Eric Weisstein's World of Mathematics, Harmonic Number
PROG
(PARI) a(n)=numerator(sum(i=1, n-1, 1/i^(2*n-1)))
CROSSREFS
Denominators are in A228427.
Sequence in context: A351117 A351138 A171705 * A023928 A022070 A123301
KEYWORD
nonn,frac
AUTHOR
Ralf Stephan, Nov 10 2013
STATUS
approved