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A136369
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Numbers n such that A136368(n) is prime.
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6
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OFFSET
| 1,1
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MATHEMATICA
| f=0; Do[ p=Prime[n]; f=f + (-1)^(n+1)*1/p^2; g=Numerator[f] ; If[ PrimeQ[g], Print[ {n, g} ] ], {n, 1, 100} ]
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CROSSREFS
| Cf. A024530 = Numerator of Sum_{k=1..n} (-1)^k / prime(k). Cf. A136368 = Numerator of Sum[ (-1)^(k+1)*1/Prime[k]^2, {k, 1, n} ] ]. Cf. A136365, A136366, A136367, A136370, A136371.
Sequence in context: A191204 A191140 A097685 * A007573 A143909 A139454
Adjacent sequences: A136366 A136367 A136368 * A136370 A136371 A136372
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KEYWORD
| more,nonn
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AUTHOR
| Alexander Adamchuk (alex(AT)kolmogorov.com), Dec 27 2007
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