A260608 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010001 or 00010101

2246, 5418, 19069, 59758, 217376, 727342, 2707758, 8855024, 33286034, 110210856, 412748296, 1357891144, 5097313270, 16821243128, 63055195644, 207867167400, 779656269748, 2570612995104, 9639618875124, 31789508626272, 119214975682522

Offset

1,1

Comments

Column 7 of A260609

Links

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

Example

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

Crossrefs

Cf. A260609

Sequence in context: A263912 A251051 A107529 * A125522 A250938 A230679

Adjacent sequences: A260605 A260606 A260607 * A260609 A260610 A260611

Keyword

nonn

Author

R. H. Hardin, Jul 29 2015

Status

approved