A086524 Primes arising as the arithmetic mean of a pair of successive terms of A086523.

11, 23, 41, 47, 71, 107, 131, 173, 227, 263, 281, 347, 431, 491, 557, 617, 647, 677, 761, 839, 953, 1163, 1283, 1361, 1493, 1583, 1667, 1811, 1907, 1931, 1973, 2039, 2111, 2207, 2333, 2417, 2459, 2543, 2621, 2663, 2711, 2741, 2777, 2819, 2897, 2963, 3089

Offset: 1

Author

Amarnath Murthy, Jul 30 2003

Keywords

• nonn

Comments

Every term == -1 (mod 6). Conjecture: every prime of the form 6k-1 is a member.

Crossrefs

Cf. A086519, A086522, A086523.

Extensions

More terms from Ray G. Opao, Jan 24 2005