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A147255 Number of n X n binary arrays with all ones connected only in a 0001-1101-0111 pattern in any orientation. 0
1, 1, 1, 17, 53, 273, 3001, 57769, 1501233, 44477633, 2219720427, 183391587053, 21595528376763 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Maximal 8 X 8 example

.0.0.0.0.1.1.1.0

.0.0.0.0.1.0.1.1

.0.0.0.0.1.0.0.0

.0.0.0.0.0.1.1.1

.1.1.1.0.1.0.0.1

.1.0.0.1.1.0.1.1

.1.1.0.1.0.0.1.0

.0.1.0.1.1.1.0.0

CROSSREFS

Sequence in context: A107175 A224269 A125637 * A146737 A146839 A147178

Adjacent sequences:  A147252 A147253 A147254 * A147256 A147257 A147258

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved

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Last modified April 19 19:16 EDT 2014. Contains 240777 sequences.