A256027 Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1

1804, 9820, 65202, 408233, 2608924, 17064206, 111505109, 730298893, 4797270283, 31486421742, 206635131614, 1357044255580, 8913054489558, 58531741918910, 384382982272254, 2524426603214310, 16579200749433316, 108882973386998444

Offset

1,1

Comments

Column 6 of A256029

Links

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

Example

Some solutions for n=3
..1..1..1..1..0..1..1..1....1..0..1..1..1..1..1..1....1..1..1..1..1..1..0..1
..1..1..0..1..1..1..1..0....1..1..1..1..1..1..0..1....0..1..1..1..0..1..1..0
..1..1..1..1..1..1..1..1....1..1..1..1..1..1..1..1....1..1..1..1..1..1..1..1
..1..1..1..1..1..1..1..1....0..1..1..0..1..1..1..1....1..0..1..1..1..1..1..1
..1..0..1..1..1..1..0..1....1..1..1..1..1..1..0..1....1..1..1..1..1..1..1..1

Crossrefs

Cf. A256029

Sequence in context: A222418 A252676 A248063 * A196788 A252029 A250385

Adjacent sequences: A256024 A256025 A256026 * A256028 A256029 A256030

Keyword

nonn

Author

R. H. Hardin, Mar 13 2015

Status

approved