Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A146461
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A146461 Number of n X n binary arrays with all ones connected only in a 1100-0111-0100 pattern in any orientation. +0
1
1, 1, 1, 17, 49, 361, 6061, 172273, 5274005, 274545571, 26127520797, 3923980431021, 871070091426765 (list; graph; listen)
OFFSET

1,4

EXAMPLE

Maximal 8 X 8 example

.1.0.0.0.0.0.1.0

.1.1.1.0.1.1.1.0

.0.1.0.0.0.0.1.1

.0.1.0.0.1.1.0.0

.0.0.1.1.1.0.1.0

.0.1.0.0.1.0.1.0

.0.1.1.1.0.1.1.1

.1.1.0.0.0.0.0.1

CROSSREFS

Sequence in context: A146698 A146706 A120612 this_sequence A098329 A160076 A003124

Adjacent sequences: A146458 A146459 A146460 this_sequence A146462 A146463 A146464

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net)

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 December 20 00:58 EST 2009. Contains 171054 sequences.


AT&T Labs Research