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%I #23 Sep 08 2022 08:45:53
%S 29,1069,4297,7649,18701,21817,34613,45553,52837,60661,63389,71933,
%T 77929,81017,90641,107881,111509,122753,155377,168601,187073,201557,
%U 264893,369409,376097,438989,476029,498973,579353,674701,711173,767681
%N Primes of the form x^2 + 29*(x+1)^2.
%C a(n) == 1 (mod 4).
%H Daniel Starodubtsev, <a href="/A176695/b176695.txt">Table of n, a(n) for n = 1..10000</a>
%t Select[Table[x^2 + 29(x + 1)^2, {x, 0, 200}], PrimeQ] (* _Harvey P. Dale_, Dec 12 2010 *)
%o (Magma) [ a: n in [0..250] | IsPrime(a) where a is 30*n^2+58*n+29 ] // _Vincenzo Librandi_, Apr 25 2010
%Y Cf. A176608, A176616, A176617.
%K nonn
%O 1,1
%A _Giovanni Teofilatto_, Apr 24 2010
%E Corrected and extended by _Vincenzo Librandi_, Apr 25 2010