login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A082033 a(n) = (3n+1)*n!. 5
1, 4, 14, 60, 312, 1920, 13680, 110880, 1008000, 10160640, 112492800, 1357171200, 17723059200, 249080832000, 3748666521600, 60153020928000, 1025216704512000, 18495746260992000, 352130553815040000, 7055415823712256000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

A row of the number array A082037.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..100

Luis Manuel Rivera, Integer sequences and k-commuting permutations, arXiv preprint arXiv:1406.3081, 2014

FORMULA

a(n) = A016777(n)*n!.

3*a(n) +(-3*n-5)*a(n-1) +2*(n-1)*a(n-2)=0. - R. J. Mathar, Oct 29 2014

PROG

(MAGMA) [(3*n+1)*Factorial(n): n in [0..20]]; // Vincenzo Librandi, May 09 2011

CROSSREFS

Cf. A007680, A082034.

Sequence in context: A307399 A307411 A259104 * A009339 A050912 A250399

Adjacent sequences:  A082030 A082031 A082032 * A082034 A082035 A082036

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Apr 02 2003

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 8 05:50 EDT 2020. Contains 336290 sequences. (Running on oeis4.)