Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
The OEIS is supported by the many generous donors to the OEIS Foundation.
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 WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified September 28 16:16 EDT 2024. Contains 376297 sequences.
License Agreements, Terms of Use, Privacy Policy