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Search: id:A145637
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| A145637 |
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Numerator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=15. |
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+0
2
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| 465, 209565, 47152315, 148529794155, 33419203686359, 82712529123751895, 241934147686974440055, 108870366459138498280005, 1249287455118614267774548855, 1780234623544025331578797259451
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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For denominators see A145636. For general properties of A_l(x) see A145609.
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MATHEMATICA
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m = 15; aa = {}; Do[k = 0; Do[k = k + m^(2 r + 1 - d)/d, {d, 1, 2 r}]; AppendTo[aa, Numerator[k]], {r, 1, 25}]; aa (*Artur Jasinski*)
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CROSSREFS
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Cf. A145609 - A145640.
Sequence in context: A115441 A028383 A069399 this_sequence A051987 A034593 A036339
Adjacent sequences: A145634 A145635 A145636 this_sequence A145638 A145639 A145640
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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 14 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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