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%I #3 Mar 30 2012 18:52:39
%S 1,2,3,4,12,31,36,53,54,78,82,105,125,155,247,403,422,548,678,679,751,
%T 769,784,798,809,829,845,899,1049,1148,1155,1312,1317,1423,1436,1490,
%U 1616,1688,1935,1961,1990,1991,2071,2181,2198,2397,2437,2454,2463,2556
%N ((n+{0,1})-th prime-1)^2+1 are both primes.
%C Numbers n such that ((n+{0,1})-th prime-1)^2+1 are both primes.
%e a(1)=1 because ((1+0)-th prime-1)^2+1=2=prime and ((1+1)-th prime-1)^2+1=5=prime; a(2)=2 because ((2+0)-th prime-1)^2+1=5=prime and ((2+1)-th prime-1)^2+1=17=prime
%Y Cf. A000040, A006093, A127435, A173444.
%K nonn
%O 1,2
%A _Juri-Stepan Gerasimov_, Feb 18 2010
%E 126 removed. Terms beyond 247 added by _R. J. Mathar_, Mar 01 2010
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