A231578 Sequence of pairs k,g such that k is the smallest and k*2^n+1-g, k*2^n+1, k*2^n+1+g are three consecutive primes in arithmetic progression.

105, 12, 1, 2, 219, 6, 37, 6, 245, 12, 109, 6, 39, 6, 1, 6, 245, 12, 669, 6, 9, 6, 45, 12, 5, 12, 1413, 6, 297, 6, 37, 6, 2019, 18, 603, 24, 467, 6, 897, 6, 303, 6, 1687, 12, 77, 30, 1437, 6, 711, 36, 2293, 6, 315, 42, 525, 12, 1799, 12, 4137, 30, 1019, 6

Offset

1,1

Links

Pierre CAMI, Table of n, a(n) for n = 1..1300

Pierre CAMI, PFGW Script

Example

1*2^8+1-6=251, 1*2^8+1=257, 1*2^8+1+6=263, so the pair for n=8 is 1,6.

Crossrefs

Cf. A231576.

Sequence in context: A282188 A271764 A069172 * A104437 A361417 A112814

Adjacent sequences: A231575 A231576 A231577 * A231579 A231580 A231581

Keyword

nonn

Author

Pierre CAMI, Nov 11 2013

Status

approved