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Search: id:A145638
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| A145638 |
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Denominator the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=14. |
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+0
2
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| 1, 6, 15, 60, 45, 990, 6435, 10296, 43758, 4157010, 2078505, 191222460, 239028075, 1434168450, 20795442525, 10314539492400, 2578634873100, 1289317436550, 23852372576175, 95409490304700, 977947275623175, 84103465703593050
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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For numerators see A145635. For general properties of A_l(x) see A145609.
m^(2n)Log[m/(m-1)]-A[1,2n+1](m)
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MATHEMATICA
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m = 14; aa = {}; Do[k = 0; Do[k = k + m^(2 r + 1 - d)/d, {d, 1, 2 r}]; AppendTo[aa, Denominator[k]], {r, 1, 30}]; aa (*Artur Jasinski*)
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CROSSREFS
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Cf. A145609 - A145640.
Sequence in context: A119132 A073065 A093042 this_sequence A067665 A012595 A012294
Adjacent sequences: A145635 A145636 A145637 this_sequence A145639 A145640 A145641
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KEYWORD
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frac,nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Oct 16 2008
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EXTENSIONS
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Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 21 2009
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