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A114256 Prime numbers in A014285. 1

%I #6 May 25 2018 10:14:58

%S 2,23,42043,378761,462109,667127,1116851,1625461,1908787,2637043,

%T 2711399,3019763,4394603,5405447,7418599,8682757,10832561,12652489,

%U 13528079,14214661,15167443,16413641,23086711,27209249,29062339

%N Prime numbers in A014285.

%o (PARI) lista(nn) = for(n=1, nn, if (isprime(p=sum(k=1, n, k*prime(k))), print1(p, ", "))); \\ _Michel Marcus_, May 25 2018

%Y Cf. A014285 (Sum i*prime(i); i=1..n), A114257 (numbers n such that A014285(n) is prime).

%K nonn

%O 1,1

%A _Zak Seidov_, Nov 18 2005

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Last modified May 29 14:11 EDT 2024. Contains 372952 sequences. (Running on oeis4.)