login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A172731 Number of n X n 0..3 arrays with row sums 13 and column sums 13 1
0, 0, 0, 0, 6210, 20592419760, 272039989206828885, 11790866860533363630752256, 1609379339428507638996616962234528, 649308484381906359124692131947427492018400 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

R. H. Hardin, Table of n, a(n) for n=1..11

CROSSREFS

Sequence in context: A246889 A172629 A172697 * A330364 A230733 A293355

Adjacent sequences: A172728 A172729 A172730 * A172732 A172733 A172734

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 1 15:49 EDT 2023. Contains 361695 sequences. (Running on oeis4.)