The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A023021 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A023021

Number of partitions of n into parts of 23 kinds.
(history; published version)

#34 by N. J. A. Sloane at Mon Mar 27 21:32:46 EDT 2017

STATUS

reviewed

approved

#33 by Michel Marcus at Mon Mar 27 13:30:00 EDT 2017

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proposed

reviewed

#32 by Indranil Ghosh at Mon Mar 27 10:54:47 EDT 2017

STATUS

editing

proposed

#31 by Indranil Ghosh at Mon Mar 27 10:54:37 EDT 2017

PROG

(PARI) Vec(1/eta(x)^23 + O(x^30)) \\ Indranil Ghosh, Mar 27 2017

STATUS

reviewed

editing

#30 by Joerg Arndt at Mon Mar 27 10:52:20 EDT 2017

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proposed

reviewed

#29 by Seiichi Manyama at Mon Mar 27 10:31:00 EDT 2017

STATUS

editing

proposed

#28 by Seiichi Manyama at Mon Mar 27 10:25:05 EDT 2017

FORMULA

a(0) = 1, a(n) = (23/n)*Sum_{k=1..n} A000203(k)*a(n-k) for n > 0. - Seiichi Manyama, Mar 27 2017

STATUS

approved

editing

#27 by Bruno Berselli at Thu Dec 03 11:01:02 EST 2015

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proposed

approved

#26 by Jean-François Alcover at Thu Dec 03 10:57:41 EST 2015

STATUS

editing

proposed

#25 by Jean-François Alcover at Thu Dec 03 10:57:37 EST 2015

MATHEMATICA

CoefficientList[1/QPochhammer[q]^23 + O[q]^30, q] (* Jean-François Alcover, Dec 03 2015 *)

STATUS

approved

editing