The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A097941

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A097941

Total number of smallest parts in all compositions of n.
(history; published version)

#15 by R. J. Mathar at Wed Jun 12 06:06:12 EDT 2019

STATUS

editing

approved

#14 by R. J. Mathar at Wed Jun 12 06:06:07 EDT 2019

LINKS

Knopfmacher, Arnold; Munagi, Augustine O. <a href="https://doi.org/10.1007/978-3-642-30979-3_11">Smallest parts in compositions</a>, Kotsireas, Ilias S. (ed.) et al., Advances in combinatorics. In part based on the 3rd Waterloo workshop on computer algebra (WWCA, W80) 2011, Waterloo, Canada, May 26-29, 2011. Berlin: Springer. 197-207 (2013).

STATUS

approved

editing

#13 by Jon E. Schoenfield at Sat Mar 14 17:41:41 EDT 2015

STATUS

editing

approved

#12 by Jon E. Schoenfield at Sat Mar 14 17:41:39 EDT 2015

MATHEMATICA

Drop[ CoefficientList[ Series[(1 - x)^2*Sum[x^k/(1 - x - x^k)^2, {k, 50}], {x, 0, 30}], x], 1] (* _Robert G. Wilson v _, Sep 08 2004 *)

STATUS

approved

editing

#11 by Bruno Berselli at Thu May 01 18:34:23 EDT 2014

STATUS

proposed

approved

#10 by Vincenzo Librandi at Thu May 01 04:57:39 EDT 2014

STATUS

editing

proposed

#9 by Vincenzo Librandi at Thu May 01 04:57:17 EDT 2014

LINKS

Vincenzo Librandi, <a href="/A097941/b097941.txt">Table of n, a(n) for n = 1..500</a>

STATUS

approved

editing

#8 by Vaclav Kotesovec at Wed Apr 30 17:27:46 EDT 2014

STATUS

editing

approved

#7 by Vaclav Kotesovec at Wed Apr 30 17:27:21 EDT 2014

FORMULA

a(n) ~ n*2^(n-3). - Vaclav Kotesovec, Apr 30 2014

MATHEMATICA

Drop[ CoefficientList[ Series[(1 - x)^2*Sum[x^k/(1 - x - x^k)^2, {k, 50}], {x, 0, 30}], x], 1] (from * Robert G. Wilson v Sep 08 2004 *)

STATUS

approved

editing

#6 by Charles R Greathouse IV at Fri May 10 12:45:36 EDT 2013

AUTHOR

_Vladeta Jovovic (vladeta(AT)eunet.rs), _, Sep 05 2004

Discussion

Fri May 10

12:45

OEIS Server: https://oeis.org/edit/global/1911