|
%I #8 Mar 31 2012 21:03:48
%S 1,2,8,9,11,20,27,36,41,42,71,77,86,95,105,110,113,132,134,137,138,
%T 147,149,155,183,186,189,201,209,210,212,215,218,222,230,245,258,261,
%U 278,309,317,329,336,341,347,359,371,377,380,389,411,413,417,425,432,435
%N Numbers n such that 1 + Sum_{k=1..n} 2k^5 is a prime.
%F (2*n^6+6*n^5+5*n^4-n^2+6)/6 is prime.
%e Sum(k=1,2,2k^5)+1 = 2*1^5+2*2^5 + 1 = 67 is a prime so 2 belongs to the sequence.
%Y A091872 gives corresponding primes.
%K nonn,easy
%O 1,2
%A _Yalcin Aktar_, Jul 28 2003
%E More terms from _Ray Chandler_, Aug 07 2003
|
