The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A047053

(Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A047053

a(n) = 4^n * n!.
(history; published version)

#116 by Joerg Arndt at Fri Aug 09 05:03:54 EDT 2024

STATUS

reviewed

approved

#115 by Michel Marcus at Fri Aug 09 04:14:51 EDT 2024

STATUS

proposed

reviewed

#114 by Jason Yuen at Fri Aug 09 04:12:40 EDT 2024

STATUS

editing

proposed

#113 by Jason Yuen at Fri Aug 09 04:12:31 EDT 2024

FORMULA

Sum_{n>=0) } 1/a(n) = e^(1/4) (A092042).

Sum_{n>=0) } (-1)^n/a(n) = e^(-1/4) (A092616). (End)

STATUS

approved

editing

#112 by Charles R Greathouse IV at Thu Sep 08 08:44:56 EDT 2022

PROG

(MAGMAMagma) [4^n*Factorial(n): n in [0..20]]; // Vincenzo Librandi, Jul 20 2011

Discussion

Thu Sep 08

08:44

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

#111 by Harvey P. Dale at Sun Sep 19 17:19:22 EDT 2021

STATUS

editing

approved

#110 by Harvey P. Dale at Sun Sep 19 17:19:17 EDT 2021

MATHEMATICA

Table[4^n n!, {n, 0, 20}] (* Harvey P. Dale, Sep 19 2021 *)

STATUS

approved

editing

#109 by Joerg Arndt at Thu May 20 04:39:38 EDT 2021

STATUS

proposed

approved

#108 by Torsten Muetze at Thu May 20 04:12:05 EDT 2021

STATUS

editing

proposed

#107 by Torsten Muetze at Thu May 20 04:11:44 EDT 2021

LINKS

CombOS - Combinatorial Object Server, <a href="http://combos.org/cperm">Generate colored permutations</a>

STATUS

approved

editing

Discussion

Thu May 20

04:12

Torsten Muetze: Added link to object generation on Combinatorial Object Server