Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A140338
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A140338 Half the number of n X n binary matrices differing in at most three positions between adjacent rows and at most three positions between adjacent columns. +0
1
1, 8, 256, 23045, 3499498, 540106922, 68719476736 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A013824 A010044 A024290 this_sequence A140339 A103488 A041487

Adjacent sequences: A140335 A140336 A140337 this_sequence A140339 A140340 A140341

KEYWORD

nonn

AUTHOR

Ron Hardin (rhh(AT)cadence.com), May 28 2008

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.