A146437 Number of n X n binary arrays with all ones connected only in a 1100-0100-0111 pattern in any orientation.

1, 1, 1, 17, 57, 337, 4357, 135183, 3521533, 135176521, 9933992919, 1311405922839

Offset

1,4

Links

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

Example

Maximal 8 X 8 example
.0.1.1.1.0.0.0.1
.0.1.0.0.0.1.1.1
.1.1.0.0.0.1.0.0
.0.0.1.0.0.1.0.0
.1.1.1.0.0.0.0.1
.1.0.0.1.1.0.0.1
.1.0.0.1.0.1.1.1
.0.1.1.1.0.1.0.0

Crossrefs

Sequence in context: A147131 A147162 A146690 * A146783 A146570 A147209

Adjacent sequences: A146434 A146435 A146436 * A146438 A146439 A146440

Keyword

nonn

Author

R. H. Hardin

Status

approved