A164597 a(n) = the largest integer such that {the n-th prime} + k(k + 1) is prime for all k where 0 <= k <= a(n).

0, 1, 3, 0, 9, 0, 15, 0, 0, 1, 0, 0, 39, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 3, 0, 2, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 3, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1

Offset: 1

Author

Leroy Quet, Aug 17 2009

Keywords

• nonn

Comments

a(n) <= the n-th prime -2, for all n.

Crossrefs

A092749

Extensions

More terms from R. J. Mathar, Sep 27 2009