A146610 Number of n X n binary arrays with all ones connected only in a 1000-1111-0110 pattern in any orientation.

1, 1, 1, 17, 53, 329, 4465, 97649, 2836795, 117091945, 8178361947, 928571633503

Offset

1,4

Links

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

Example

Maximal 8 X 8 example
.0.0.0.0.0.1.1.0
.0.1.1.0.1.1.1.1
.1.1.1.1.0.0.0.1
.1.0.0.0.0.1.1.0
.0.1.0.0.1.0.1.1
.1.1.0.1.1.0.1.1
.1.1.0.1.1.0.1.0
.0.1.1.0.1.1.0.0

Crossrefs

Sequence in context: A146839 A147178 A146642 * A146847 A146714 A146397

Adjacent sequences: A146607 A146608 A146609 * A146611 A146612 A146613

Keyword

nonn

Author

R. H. Hardin, Nov 04 2008

Status

approved