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%I #2 Mar 31 2012 10:28:54
%S 2,6,14,26,38,42,46,58,62,74,78,82,86,94,106,114,118,122,138,142,146,
%T 158,166,174,178,186,194,202,206,214,218,222,246,258,266,274,278,282,
%U 298,302,314,318,322,326,334,338,354,358,362,366,382,386,394,398,406
%N Integers k for which 2n + 1 is prime if 2n^2 + n divides 2^(kn) - 1
%Y Cf. A000225
%K hard,nonn
%O 1,1
%A _Reikku Kulon_, Jul 11 2009
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