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%I #6 Oct 15 2013 05:14:40
%S 2,4,6,11,14,21,37,75,81,176,194,310,324,332,345,399,447,612,1122,
%T 1209,1614,1874,1921,2186,2329,2482,2509,2874,2940,2975,3230,3611,
%U 4185,4650,4923,5172,5248,5543,5587,5673,5714,5764,6038,6078,6250,6430,6976,7023
%N Numbers n with property that A100486(n) is square.
%C For n<2*10^6 there are 411 such numbers.
%F pi(n) + n-th prime = square.
%e n=2 pi(2)+p(2)=2+2=4, n=4 pi(4)+p(4)=2+7=9, n=6 pi(6)+p(6)=3+13=16, etc.
%o (PARI) isok(n) = issquare(primepi(n) + prime(n)); \\ _Michel Marcus_, Oct 15 2013
%Y Cf. A100486.
%K nonn
%O 1,1
%A _Zak Seidov_, Feb 18 2009
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