A102927 Partial products of A102926.

2, 6, 30, 870, 9570, 66990, 870870, 32222190, 547777230, 43274401170, 995311226910, 4109640055911390, 793160530790898270, 2056665256340799214110, 207723190890420720625110

Offset

1,1

Comments

Terms up to a(111) are known from the b-file for A102926. Term a(112) requires us to find the smallest prime factor of at least one of the C472's a(111)+/-1. The companion sequence is listed on the OEIS wiki page "OEIS sequences needing factors" and the corresponding thread on mersenneforum.org. - M. F. Hasler, Mar 21 2013

Links

Table of n, a(n) for n=1..15.

Formula

Product A102926(k), 1<=k<=n.

Example

a(4) = 2*3*5*29 = 870.

Crossrefs

Cf. A000945, A005265, A102926.

Sequence in context: A074777 A007280 A280260 * A376399 A376400 A227105

Adjacent sequences: A102924 A102925 A102926 * A102928 A102929 A102930

Keyword

nonn

Author

Marc LeBrun, Jan 19 2005

Status

approved