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A095649 Primes p = p_(n+1) such that p_n + p_(n+2) = 2*p_(n+1) + 8. 8
139, 181, 241, 283, 421, 467, 811, 829, 953, 1021, 1051, 1153, 1259, 1307, 1699, 1723, 1831, 1879, 2029, 2089, 2143, 2221, 2251, 2297, 2357, 2423, 2621, 2731, 3001, 3191, 3347, 3361, 3583, 3769, 3823, 3853, 4139, 4219, 4231, 4243, 4261, 4273, 4339, 4373 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes that are second prime chords.

These come from music based on the prime differences where the chords are an even number of note steps from the primary note.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

m = 2; Prime[ 1 + Select[ Range[600], Prime[ # + 2] - 2*Prime[ # + 1] + Prime[ # ] - 4*m == 0 &]] (* Robert G. Wilson v, Jul 14 2004 *)

Transpose[Select[Partition[Prime[Range[600]], 3, 1], #[[1]]+#[[3]]==2#[[2]]+ 8&]][[2]] (* Harvey P. Dale, Feb 26 2015 *)

CROSSREFS

Cf. A095419, A095420, A095648, A095650, A095651, A095672, A095673.

Sequence in context: A290450 A209618 A031928 * A016067 A142524 A108383

Adjacent sequences:  A095646 A095647 A095648 * A095650 A095651 A095652

KEYWORD

nonn

AUTHOR

Roger L. Bagula, Jul 02 2004

EXTENSIONS

Edited by Robert G. Wilson v, Jul 14 2004

Description corrected by N. J. A. Sloane, Jul 19 2004

STATUS

approved

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Last modified October 23 12:54 EDT 2019. Contains 328345 sequences. (Running on oeis4.)