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

1,1

Comments

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

Links

Table of n, a(n) for n=1..47.

Crossrefs

Cf. A086519, A086522, A086523.

Sequence in context: A232116 A119890 A094376 * A060915 A052034 A077041

Adjacent sequences: A086521 A086522 A086523 * A086525 A086526 A086527

Keyword

nonn

Author

Amarnath Murthy, Jul 30 2003

Extensions

More terms from Ray G. Opao, Jan 24 2005

Status

approved