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

1,3

Comments

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

Links

Table of n, a(n) for n=1..104.

Crossrefs

A092749

Sequence in context: A269557 A201581 A395954 * A167295 A079442 A254006

Adjacent sequences: A164594 A164595 A164596 * A164598 A164599 A164600

Keyword

nonn

Author

Leroy Quet, Aug 17 2009

Extensions

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

Status

approved