

A136368


Numerator of Sum[ (1)^(k+1)*1/Prime[k]^2, {k,1,n} ] ].


6



1, 5, 161, 6989, 889769, 145034861, 42816875729, 15196271678069, 8132911703794601, 6790008314246422541, 6567054920481119894801, 8950073675937467308565669, 15100141203716305943432625689
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OFFSET

1,2


LINKS

Table of n, a(n) for n=1..13.


MATHEMATICA

Table[ Numerator[ Sum[ (1)^(k+1)*1/Prime[k]^2, {k, 1, n} ] ], {n, 1, 20} ]


CROSSREFS

Cf. A136369, A136365, A136366, A024530, A136370, A136371.
Sequence in context: A085330 A222628 A287032 * A229163 A322747 A274712
Adjacent sequences: A136365 A136366 A136367 * A136369 A136370 A136371


KEYWORD

nonn,frac


AUTHOR

Alexander Adamchuk, Dec 27 2007


STATUS

approved



