A092947 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, 5, 181, 2521, 552553, 39070081, 4180176001, 1483048828801, 672375473078401, 106890247271808001, 40812700642879334401, 37716399337002946560001, 18266163370859189769984001, 9553876078552184850831360001

Offset

1,1

Comments

See A092944 for additional clarification of definition.

Links

Table of n, a(n) for n=1..14.

Crossrefs

Cf. A092944, A092945, A092946.

Sequence in context: A280427 A038535 A090953 * A337158 A333413 A104996

Adjacent sequences: A092944 A092945 A092946 * A092948 A092949 A092950

Keyword

nonn

Author

Amarnath Murthy, Mar 23 2004

Extensions

Edited, corrected and extended by Ray Chandler, May 07 2008

Status

approved