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%I #9 Jun 13 2021 09:01:29
%S 1,3,10,11,16,29,38,35,64,29,54,107,58,69,92,85,82,163,124,81,190,155,
%T 142,241,116,139,338,213,176,221,214,223,520,211,184,361,278,267,400,
%U 179,294,607,288,335,362,379,342,587,394,261
%N Least k such that there are n primes among the numbers n^2 + x^2 for 1 <= x <= k.
%o (PARI) a(n)=if(n<0,0,s=1; while(sum(k=1,s,isprime(k^2+n^2))<n,s++); s)
%K easy,nonn
%O 1,2
%A _Benoit Cloitre_, Aug 19 2002
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