The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A321837 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A321837

Expansion of e.g.f.: exp(x/(1-3*x)).
(history; published version)

#41 by Charles R Greathouse IV at Thu Sep 08 08:46:23 EDT 2022

PROG

(MAGMAMagma) [1] cat [&+[3^(n-k)*Factorial(n) div Factorial(k)*Binomial(n-1, k-1): k in [0..n]]: n in [1.. 18]]; // Vincenzo Librandi, Dec 08 2018

Discussion

Thu Sep 08

08:46

OEIS Server: https://oeis.org/edit/global/2944

#40 by N. J. A. Sloane at Thu May 30 16:58:10 EDT 2019

STATUS

proposed

approved

#39 by Michael De Vlieger at Thu May 30 16:47:24 EDT 2019

STATUS

editing

proposed

#38 by Michael De Vlieger at Thu May 30 16:47:22 EDT 2019

LINKS

Norihiro Nakashima, Shuhei Tsujie, <a href="https://arxiv.org/abs/1904.09748">Enumeration of Flats of the Extended Catalan and Shi Arrangements with Species</a>, arXiv:1904.09748 [math.CO], 2019.

STATUS

approved

editing

#37 by OEIS Server at Wed Dec 19 12:42:22 EST 2018

LINKS

Ludovic Schwob, <a href="/A321837/b321837_1.txt">Table of n, a(n) for n = 0..199</a>

#36 by Vaclav Kotesovec at Wed Dec 19 12:42:22 EST 2018

STATUS

proposed

approved

Discussion

Wed Dec 19

12:42

OEIS Server: Installed new b-file as b321837.txt.  Old b-file is now b321837_1.txt.

#35 by Jon E. Schoenfield at Fri Dec 14 23:12:09 EST 2018

STATUS

editing

proposed

Discussion

Fri Dec 14

23:13

Jon E. Schoenfield: Does this look okay?

#34 by Jon E. Schoenfield at Fri Dec 14 23:12:06 EST 2018

CROSSREFS

Cf. A000262, A025168, A321847, A321848, A321849, A321850 (analogs for k=1,...,2,4,5,6,7).

STATUS

proposed

editing

#33 by Jon E. Schoenfield at Fri Dec 14 23:10:11 EST 2018

STATUS

editing

proposed

#32 by Jon E. Schoenfield at Fri Dec 14 23:10:05 EST 2018

CROSSREFS

Cf. A000262, A025168, A321847, A321848, A321849, A321850. (analog analogs for k=1,...,6).

STATUS

proposed

editing