A256770 - OEIS

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

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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