The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A121832 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A121832

Expansion of 1/(1-x-x^5-x^6).
(history; published version)

#32 by Michael De Vlieger at Tue Sep 10 17:29:40 EDT 2024

STATUS

reviewed

approved

#31 by Hugo Pfoertner at Tue Sep 10 17:01:59 EDT 2024

STATUS

proposed

reviewed

#30 by Michael De Vlieger at Tue Sep 10 16:52:49 EDT 2024

STATUS

editing

proposed

#29 by Michael De Vlieger at Tue Sep 10 16:52:47 EDT 2024

LINKS

Michael A. Allen, <a href="https://arxiv.org/abs/2409.00624">Connections between Combinations Without Specified Separations and Strongly Restricted Permutations, Compositions, and Bit Strings</a>, arXiv:2409.00624 [math.CO], 2024. See p. 18.

STATUS

approved

editing

#28 by Michael De Vlieger at Sun Mar 20 18:26:50 EDT 2022

STATUS

proposed

approved

#27 by Michel Marcus at Sun Mar 20 16:00:26 EDT 2022

STATUS

editing

proposed

#26 by Michel Marcus at Sun Mar 20 16:00:22 EDT 2022

LINKS

Said Amrouche, and Hacène Belbachir, <a href="https://doi.org/10.3906/mat-1811-109">Unimodality and linear recurrences associated with rays in the Delannoy triangle</a>, Turkish Journal of Mathematics (2019) Vol. 44, 118-130.

STATUS

proposed

editing

#25 by Jon E. Schoenfield at Sun Mar 20 14:14:19 EDT 2022

STATUS

editing

proposed

#24 by Jon E. Schoenfield at Sun Mar 20 14:14:14 EDT 2022

FORMULA

a(n) = sumSum_{k=0..floor(n/5)} A008288(n-4*k, k), k=0..floor(n/5)) - Johannes W. Meijer, Jul 19 2013

PROG

(MAGMAMagma) I:=[1, 1, 1, 1, 1, 2]; [n le 6 select I[n] else Self(n-1)+Self(n-5)+Self(n-6): n in [1..50]]; // Vincenzo Librandi, Sep 03 2013

STATUS

approved

editing

#23 by Michel Marcus at Tue Feb 04 06:51:02 EST 2020

STATUS

reviewed

approved