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Search: id:A139295
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| 31, 8191, 2305843009213693951, 14474011154664524427946373126085988481658748083205070504932198000989141204991
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n) = (2^(2*A000668(n)-1))-1.
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CROSSREFS
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Cf. A000668, A139286, A139294, A139296, A139297, A139298, A139299, A139300, A139301, A139302, A139303, A139304, A139305, A139306.
Sequence in context: A136676 A135811 A119598 this_sequence A069451 A073099 A074218
Adjacent sequences: A139292 A139293 A139294 this_sequence A139296 A139297 A139298
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KEYWORD
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more,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Apr 13 2008
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