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Group the natural numbers so that the n-th group contains n numbers whose sum as well as the group product +1 is prime. Sequence contains the primes arising as the product of the terms of groups +1.
3

%I #4 Dec 05 2013 19:56:46

%S 3,5,181,2521,552553,39070081,4180176001,1483048828801,

%T 672375473078401,106890247271808001,40812700642879334401,

%U 37716399337002946560001,18266163370859189769984001,9553876078552184850831360001

%N Group the natural numbers so that the n-th group contains n numbers whose sum as well as the group product +1 is prime. Sequence contains the primes arising as the product of the terms of groups +1.

%C See A092944 for additional clarification of definition.

%Y Cf. A092944, A092945, A092946.

%K nonn

%O 1,1

%A _Amarnath Murthy_, Mar 23 2004

%E Edited, corrected and extended by _Ray Chandler_, May 07 2008