A256770 Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum

3502080, 46785600, 277704000, 1648360000, 7138454400, 30914078976, 117202871808, 444344894464, 1607870564992, 5818110629776, 20980333531040, 75655899841600, 277153998638400, 1015311946881600, 3799410667004160

Offset

1,1

Comments

Column 7 of A256771

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

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

Crossrefs

Cf. A256771

Sequence in context: A240105 A205766 A183790 * A106812 A106811 A258687

Adjacent sequences: A256767 A256768 A256769 * A256771 A256772 A256773

Keyword

nonn

Author

R. H. Hardin, Apr 09 2015

Status

approved