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Search: id:A155456
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| A155456 |
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Write (1+1/x)*log(1+x) = Sum c(n)*x^n; then a(n) = (n+1)!*c(n). |
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+0
1
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| -1, -1, 1, -2, 6, -24, 120, -720, 5040, -40320, 362880, -3628800, 39916800, -479001600, 6227020800, -87178291200, 1307674368000, -20922789888000, 355687428096000, -6402373705728000, 121645100408832000
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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Apart from initial terms and signs, identical to A000142.
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LINKS
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P. W. Anderson, D. J. Thouless, E. Abrahams and D. S. Fisher, New method for a scaling theory of localization, Physical Review B, 1980.
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MATHEMATICA
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p[x] = -(1 + 1/x)*Log[1 + x];
Table[ (n + 1)!*SeriesCoefficient[ Series[p[x], {x, 0, 30}], n], {n, 0, 30}]
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CROSSREFS
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Sequence in context: A154658 A072167 A154659 this_sequence A000142 A104150 A124355
Adjacent sequences: A155453 A155454 A155455 this_sequence A155457 A155458 A155459
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KEYWORD
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sign
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jan 22 2009
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EXTENSIONS
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Edited by N. J. A. Sloane, Jun 02 2009
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