A205324 Numbers k such that, for the least prime p > 3, 2^n + p*2^k - 1 and 2^n + p*2^k + 1 are twin primes with n/3 < k < n+1.

1, 1, 2, 3, 3, 4, 4, 3, 7, 7, 7, 6, 10, 7, 6, 16, 7, 8, 14, 7, 9, 14, 12, 14, 19, 22, 21, 11, 12, 29, 20, 15, 12, 29, 26, 27, 22, 15, 26, 27, 28, 34, 19, 43, 43, 35, 43, 40, 27, 44, 44, 33, 22, 48, 39, 19, 29, 32, 20, 22, 50, 23, 27, 55, 63, 56, 60, 61, 47

Offset

1,3

Links

Pierre CAMI, Table of n, a(n) for n = 1..2000

Example

See A205323.

Prog

See A205323.

Crossrefs

Cf. A205236, A205237, A205323.

Sequence in context: A331377 A343754 A327551 * A359512 A213253 A132983

Adjacent sequences: A205321 A205322 A205323 * A205325 A205326 A205327

Keyword

nonn

Author

Pierre CAMI, Jan 26 2012

Status

approved