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Search: id:A095649
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| A095649 |
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Primes p = p_(n+1) such that p_n + p_(n+2) = 2*p_(n+1) + 8. |
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+0
8
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| 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; listen)
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OFFSET
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1,1
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COMMENT
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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.
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MATHEMATICA
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m = 2; Prime[ 1 + Select[ Range[600], Prime[ # + 2] - 2*Prime[ # + 1] + Prime[ # ] - 4*m == 0 &]] (from Robert G. Wilson v Jul 14 2004)
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CROSSREFS
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Cf. A095419, A095420, A095648, A095650, A095651, A095672, A095673.
Sequence in context: A050967 A071382 A031928 this_sequence A142524 A108383 A027867
Adjacent sequences: A095646 A095647 A095648 this_sequence A095650 A095651 A095652
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KEYWORD
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nonn
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jul 02 2004
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EXTENSIONS
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Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 14 2004
Description corrected by N. J. A. Sloane (njas(AT)research.att.com), Jul 19 2004.
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