A255791 Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 2 and no antidiagonal sum 2 and no row sum 0 and no column sum 0

6186, 6668, 28009, 110678, 496995, 2364049, 10902535, 50280547, 235622788, 1098780761, 5111533704, 23832441783, 111171909857, 517928051299, 2414430817776, 11254623501289, 52467900379268, 244525761912727

Offset

1,1

Comments

Column 7 of A255792

Links

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

Example

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

Crossrefs

Cf. A255792

Sequence in context: A114930 A068757 A278868 * A186602 A031836 A094494

Adjacent sequences: A255788 A255789 A255790 * A255792 A255793 A255794

Keyword

nonn

Author

R. H. Hardin, Mar 06 2015

Status

approved