0,2

Sequence is infinite: every number of the form 111..1 is in the sequence, for example. - Gabriel Cunningham (gcasey(AT)mit.edu), Apr 07 2003

Table of n, a(n) for n=0..58.

126 is a member as 1*2*6 + 1 = 13 is a prime.

Sequence in context: A237277 A097954 A324333 * A244748 A245017 A300149

Adjacent sequences: A081985 A081986 A081987 * A081989 A081990 A081991

base,easy,nonn

Amarnath Murthy, Apr 04 2003

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

approved