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Search: id:A098649
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| A098649 |
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Primes of the form 2(p+q) + 1, where p and q are consecutive primes. |
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+0
2
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| 11, 17, 37, 61, 73, 137, 157, 181, 241, 257, 277, 373, 397, 409, 421, 433, 577, 601, 617, 641, 661, 769, 821, 1097, 1117, 1129, 1153, 1201, 1237, 1249, 1297, 1453, 1481, 1597, 1621, 1657, 1861, 1933, 2089, 2129, 2281, 2297, 2417, 2441, 2473, 2749, 2857, 3037
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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a(n)== 1 (mod 4), except for the initial term.
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MATHEMATICA
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Select[ Table[2(Prime[i] + Prime[i + 1]) + 1, {i, 150}], PrimeQ[ # ] &] (from Robert G. Wilson v Sep 19 2004)
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CROSSREFS
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Cf. A097361.
Sequence in context: A086711 A039514 A098797 this_sequence A078872 A163387 A147253
Adjacent sequences: A098646 A098647 A098648 this_sequence A098650 A098651 A098652
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KEYWORD
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nonn
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AUTHOR
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Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Sep 18 2004
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 19 2004
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