A107061 a(n) = largest number m >0 such that n*prime(n)-a(n) is a prime.

1, 1, 2, 1, 4, 1, 8, 5, 4, 3, 6, 5, 8, 5, 4, 5, 6, 5, 4, 3, 10, 3, 4, 1, 12, 7, 8, 3, 2, 1, 6, 9, 2, 3, 12, 1, 4, 3, 8, 27, 10, 1, 6, 9, 2, 3, 6, 5, 8, 17, 4, 5, 8, 13, 8, 3, 16, 9, 6, 11, 28, 3, 32, 9, 2, 7, 12, 5, 14, 9, 10, 1, 10, 9, 4, 15, 6, 5, 8, 29, 2, 15, 24, 1, 6, 15, 16, 15, 10, 11, 2, 3, 2

Offset

1,3

Comments

Cf. A107060: a(n)>=0 such that n*prime(n)-a(n) is the largest prime

Links

Table of n, a(n) for n=1..93.

Crossrefs

Cf. A107060.

Sequence in context: A146221 A147457 A355226 * A112481 A134851 A355227

Adjacent sequences: A107058 A107059 A107060 * A107062 A107063 A107064

Keyword

nonn

Author

Zak Seidov, May 10 2005

Status

approved