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%I #8 Sep 08 2022 08:46:05
%S 31,61,151,281,661,911,1531,1901,9461,18911,25561,27011,31601,51511,
%T 57781,59951,81281,86461,94531,97301,111751,114761,140281,183361,
%U 187211,286801,347161,363151,401861,485161,603781,697511,720101,758551,806011,939611,965801
%N Primes of the form 5*p^2+5*p+1, where p is a prime.
%C Primes generated in A175063.
%C The square roots of (4*a(n)+1)/5 are in A072055. [_Bruno Berselli_, May 19 2013]
%t Select[Table[p=Prime[n]; 5*p^2+5*p+1, {n,85}], PrimeQ]
%o (Magma) [a: p in PrimesUpTo(500) | IsPrime(a) where a is 5*p^2+5*p+1]; // _Bruno Berselli_, May 19 2013
%Y Cf. A175063.
%K nonn
%O 1,1
%A _Jayanta Basu_, May 19 2013
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