A092947 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

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

(list; graph; refs; listen; history; text; internal format)

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