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Search: id:A016755
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| 1, 27, 125, 343, 729, 1331, 2197, 3375, 4913, 6859, 9261, 12167, 15625, 19683, 24389, 29791, 35937, 42875, 50653, 59319, 68921, 79507, 91125, 103823, 117649, 132651, 148877, 166375, 185193, 205379
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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S. R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, Section 1.6.3.
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FORMULA
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Sum_{n >= 0} 1/a(n) = 7 zeta(3) / 8.
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PROGRAM
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(Other) sage: [ -crt(2, n, 4, 5)^3/2^3 for n in xrange(3, 37)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 07 2009]
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CROSSREFS
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Cf. A016743.
Sequence in context: A125497 A118092 A126272 this_sequence A074100 A082610 A061434
Adjacent sequences: A016752 A016753 A016754 this_sequence A016756 A016757 A016758
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KEYWORD
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nonn,easy,new
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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