A226840 - OEIS

%I #4 Jun 19 2013 10:42:16

%S 3,2,9547,255763,9148351,189637381,78793186597,1312901933341

%N Least prime in a string of exactly n consecutive primes all differing by a square.

%C a(9) > 10^14.

%e The 7 gaps following a(8) = 1312901933341 are the squares 36, 144, 36, 36, 4, 36, 36.

%Y Cf. A220697, A226768, A226769.

%K nonn

%O 1,1

%A _Giovanni Resta_, Jun 19 2013