A146995 Number of n X n binary arrays with all ones connected only in a 00100-00100-11111 pattern in any orientation.

1, 1, 1, 1, 13, 41, 308, 2695, 29727, 454197, 10169685, 297550563, 12103659827, 684418386161, 52856689809723

Offset

1,5

Links

Table of n, a(n) for n=1..15.

Example

Maximal 8 X 8 example
.1.1.1.1.1.0.0.0
.0.0.1.0.0.0.0.0
.1.0.1.0.0.0.0.0
.1.0.0.0.0.0.0.1
.1.1.1.0.0.0.0.1
.1.0.0.1.0.1.1.1
.1.0.0.1.0.0.0.1
.0.1.1.1.1.1.0.1

Crossrefs

Sequence in context: A167240 A147247 A028468 * A102130 A080186 A287307

Adjacent sequences: A146992 A146993 A146994 * A146996 A146997 A146998

Keyword

nonn

Author

R. H. Hardin, Nov 04 2008

Status

approved