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%I #6 Sep 08 2022 08:46:01
%S 137,521,1721,3257,4217,5897,6521,7177,9337,10937,13577,15497,18617,
%T 20857,27017,41737,55817,65657,80777,90121,105097,113017,118457,
%U 126857,141497,163337,173177,176521,179897,197257,208057,215417,226697
%N Primes of the form 16n^2 + 121.
%H Vincenzo Librandi, <a href="/A202083/b202083.txt">Table of n, a(n) for n = 1..10000</a>
%t Select[Table[16n^2+121,{n,0,900}],PrimeQ]
%o (Magma) [a: n in [0..200] | IsPrime(a) where a is 16*n^2+121];
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Dec 11 2011
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