%I #9 Sep 04 2013 09:27:34
%S 2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,19,20,21,22,23,24,26,27,28,
%T 29,30,31,32,33,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,
%U 53,54,55,56,57,59,60,61,62
%N Sum of a square and a prime.
%C A002471(a(n))>0; complement of A014090; A143989 is a subsequence. [From _Reinhard Zumkeller_, Sep 07 2008]
%o (PARI) isok(n) = for (i = 0, sqrtint(n), if (isprime(n - i^2), return (1))); 0 \\ _Michel Marcus_, Sep 04 2013
%Y Cf. A058654.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_.