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Search: id:A145639
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| A145639 |
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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=16. |
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+0
2
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| 264, 203020, 86622136, 155226869062, 357642706328312, 1007121861020611852, 3351701553476597181976, 858035597690008879399669, 1244723640382306214386523896, 1210867157363907485355224291060
(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 A145640. For general properties of A_l(x) see A145609.
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MATHEMATICA
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m = 16; 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: A035315 A107507 A013974 this_sequence A116501 A151602 A051976
Adjacent sequences: A145636 A145637 A145638 this_sequence A145640 A145641 A145642
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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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