Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A147217
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A147217 Number of n X n binary arrays with all ones connected only in a 1100-0111-0101 pattern in any orientation. +0
1
1, 1, 1, 17, 49, 237, 2821, 72631, 1759597, 48580733, 2684705291, 263944603423 (list; graph; listen)
OFFSET

1,4

EXAMPLE

Maximal 8 X 8 example

.0.1.0.1.0.0.0.0

.0.1.1.1.0.0.1.1

.1.1.0.0.0.0.1.0

.0.0.0.0.0.1.1.1

.0.0.0.0.0.1.0.0

.0.0.1.1.0.0.1.1

.1.1.1.0.1.1.1.0

.1.0.1.0.1.0.1.0

CROSSREFS

Sequence in context: A146799 A147201 A146775 this_sequence A147051 A146855 A146666

Adjacent sequences: A147214 A147215 A147216 this_sequence A147218 A147219 A147220

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net), Nov 04 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 November 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research