A251857 Number of (n+2)X(4+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 4 or more

2525037, 216245728, 20861600041, 1840787119956, 164065118611251, 14820877153549049, 1334288403583213012, 120005649204594579167, 10802330861739344082166, 972390283849153112134282

Offset

1,1

Comments

Column 4 of A251858

Links

R. H. Hardin, Table of n, a(n) for n = 1..33

Example

Some solutions for n=1
..0..0..1..0..0..1....0..0..2..0..0..0....0..0..0..0..0..1....0..0..1..0..1..1
..0..0..0..1..0..1....0..0..1..0..0..0....1..0..1..0..2..1....0..0..1..0..0..1
..0..1..1..0..1..1....0..1..0..0..1..2....0..1..0..0..1..0....1..0..0..1..0..0

Crossrefs

Sequence in context: A157769 A183651 A259628 * A096557 A345087 A345088

Adjacent sequences: A251854 A251855 A251856 * A251858 A251859 A251860

Keyword

nonn

Author

R. H. Hardin, Dec 09 2014

Status

approved