A146397 - OEIS

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A146397

Number of n X n binary arrays with all ones connected only in a 1000-1111-0010 pattern in any orientation.

1, 1, 1, 17, 53, 413, 6359, 140181, 4762523, 251128215, 21398918375, 2933749685145

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Maximal 8 X 8 example

.0.1.1.0.1.1.0.0

.0.1.0.0.1.0.1.0

.1.1.0.1.1.0.1.1

.0.1.0.0.1.0.1.0

.1.0.0.0.0.1.1.0

.1.1.1.1.0.0.0.1

.0.0.1.0.1.1.1.1

.0.0.0.0.0.1.0.0

CROSSREFS

Sequence in context: A146610 A146847 A146714 * A146405 A228244 A158968

Adjacent sequences: A146394 A146395 A146396 * A146398 A146399 A146400

KEYWORD

nonn

AUTHOR

R. H. Hardin

STATUS

approved