A259722 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 or 00000011

1388, 2330, 6092, 12198, 13920, 33846, 75200, 109360, 207144, 488034, 830840, 1412994, 3176940, 6111876, 10240848, 21086966, 43338672, 75819920, 144484316, 300543852, 556594492, 1021061570, 2072946252, 4012227308, 7345052712

Offset

1,1

Comments

Column 7 of A259723

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..0..0..0..0..0..0..0..0..1....0..0..0..1..1..0..0..0..1
..0..0..0..0..0..0..0..1..1....0..0..0..0..0..0..0..1..1
..0..1..0..0..1..0..0..0..0....1..0..0..0..0..0..0..0..0
..0..1..0..0..1..0..0..0..0....1..0..0..1..1..0..0..0..0
..0..0..0..0..0..0..0..1..0....0..0..0..0..0..0..0..1..0
..0..0..0..0..0..0..0..1..1....0..0..0..0..0..0..0..1..1

Crossrefs

Cf. A259723

Sequence in context: A177884 A182123 A200971 * A253497 A253490 A253451

Adjacent sequences: A259719 A259720 A259721 * A259723 A259724 A259725

Keyword

nonn

Author

R. H. Hardin, Jul 03 2015

Status

approved