A167739 - OEIS

%I #10 Jun 24 2016 06:36:03

%S 241,1009,3001,44809,67489,93889,145441,195121,205081,235009,285049,

%T 295081,355441,416089,538249,558721,620329,713281,744409,817321,

%U 1199329,1418569,1481281,1889689,1952641,2520649,2742241,3409369,3504961,3568729,3792169,3952009

%N Primes that becomes a square when prefixed with a 6.

%H Vincenzo Librandi, <a href="/A167739/b167739.txt">Table of n, a(n) for n = 1..105</a>

%t Select[Prime[Range[300000]],IntegerQ[Sqrt[FromDigits[Join[{6}, IntegerDigits[ #]]]]]&] (* _Harvey P. Dale_, May 05 2012 *)

%Y Cf. A167734, A167735, A167736, A167737, A167738, A167740, A167741.

%K base,nonn

%O 1,1

%A _Claudio Meller_, Nov 10 2009

%E More terms from Harvey P. Dale, May 05 2012