Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A147266
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A147266 Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 0100-1100-0111-0001 pattern in any orientation. +0
1
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 15, 15, 33, 33, 77, 77, 553, 553 (list; graph; listen)
OFFSET

1,13

EXAMPLE

Maximal 13 X 13 example

.0.0.0.1.0.0.0.0.0.1.0.0.0

.0.0.1.1.0.0.0.0.0.1.1.0.0

.0.1.0.1.1.1.0.1.1.1.0.1.0

.1.1.1.0.0.1.0.1.0.0.1.1.1

.0.0.1.0.0.0.0.0.0.0.1.0.0

.0.0.1.1.0.0.0.0.0.1.1.0.0

.0.0.0.0.0.0.0.0.0.0.0.0.0

.0.0.1.1.0.0.0.0.0.1.1.0.0

.0.0.1.0.0.0.0.0.0.0.1.0.0

.1.1.1.0.0.1.0.1.0.0.1.1.1

.0.1.0.1.1.1.0.1.1.1.0.1.0

.0.0.1.1.0.0.0.0.0.1.1.0.0

.0.0.0.1.0.0.0.0.0.1.0.0.0

CROSSREFS

Sequence in context: A062367 A061200 A050350 this_sequence A147152 A104551 A100746

Adjacent sequences: A147263 A147264 A147265 this_sequence A147267 A147268 A147269

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 27 14:50 EST 2009. Contains 167570 sequences.


AT&T Labs Research