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A139287
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2^(2p - 1) - 1, where p is prime.
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9
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7, 31, 511, 8191, 2097151, 33554431, 8589934591, 137438953471, 31584372088831, 144115188075855871, 2305843009213693951, 9444732965739290427391, 2417851639229258349412351, 38685626227668133590597631
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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PROG
| (MAGMA)[2^(2*p-1)-1: p in PrimesUpTo(200)][From V.Librandi, Dec 15 2010]
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CROSSREFS
| Cf. A000040, A000079, A076274, A139286, A139288, A139289, A139290, A139291, A139292, A139293, A139294, A139306.
Sequence in context: A143564 A153028 A135630 * A139307 A197451 A197301
Adjacent sequences: A139284 A139285 A139286 * A139288 A139289 A139290
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KEYWORD
| nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Apr 13 2008
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