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A139289
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(2^(2p - 1)/2)-1, where p is prime.
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8
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3, 15, 255, 4095, 1048575, 16777215, 4294967295, 68719476735, 17592186044415, 72057594037927935, 1152921504606846975, 4722366482869645213695, 1208925819614629174706175, 19342813113834066795298815, 4951760157141521099596496895, 20282409603651670423947251286015, 83076749736557242056487941267521535
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Floris P. van Doorn and Jasper Mulder, Table of n, a(n) for n=1,...,260.
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FORMULA
| a(n)=(A139286(n)/2)-1.
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MATHEMATICA
| Table[(2^(2 Prime[p] - 1)/2) - 1, {p, 1, 20}] [From Floris P. van Doorn and Jasper Mulder (florisvandoorn(AT)hotmail.com), Oct 12 2009]
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CROSSREFS
| Cf. A139286, A139287, A139288, A139290, A139291, A139292, A139293, A139294, A139306.
Sequence in context: A136466 A114735 A173146 * A116518 A050474 A051179
Adjacent sequences: A139286 A139287 A139288 * A139290 A139291 A139292
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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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EXTENSIONS
| More terms from Floris P. van Doorn and Jasper Mulder (florisvandoorn(AT)hotmail.com), Oct 12 2009
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