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 A136367 Numbers n such that A024529(n+1) is prime. 5
 2, 3, 4, 5, 11, 59, 397, 613, 906 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A024529(n+1) = Numerator [ 1 + Sum[ (-1)^k*1/Prime[k], {k, 1, n} ] ] = {1,5,19,163,1583,22889,359083,7333087,158961311,...}. LINKS MATHEMATICA f=1; Do[ p=Prime[n]; f=f + (-1)^n*1/p; g=Numerator[f] ; If[ PrimeQ[g], Print[ {n, g} ] ], {n, 1, 60} ] CROSSREFS Cf. A024529 = Numerator of 1 + Sum_{k=1..n-1} (-1)^k / prime(k). Cf. A024530, A136366. Cf. A136365, A136368, A136369, A136370, A136371. Sequence in context: A032988 A280206 A190783 * A014545 A158930 A065636 Adjacent sequences:  A136364 A136365 A136366 * A136368 A136369 A136370 KEYWORD more,nonn AUTHOR Alexander Adamchuk, Dec 27 2007 EXTENSIONS a(7) - a(9) from Alexander Adamchuk, Sep 15 2010 STATUS approved

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Last modified January 18 23:05 EST 2019. Contains 319282 sequences. (Running on oeis4.)