A251490 Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements

2319053056, 84982973330688, 3111780313414886566, 113935706529820385852096, 4171660889647765001349774656, 152741708226257877188571836140832, 5592502682614387617928036405017785714

Offset

1,1

Comments

Column 7 of A251491

Links

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

Example

Some solutions for n=1
..0..0..0..0..2..2..1..2....0..0..0..0..3..1..1..2....0..0..0..0..3..2..2..1
..0..0..0..3..2..2..1..0....0..0..0..2..2..2..1..1....0..0..0..0..2..0..2..1

Crossrefs

Sequence in context: A345722 A346363 A022240 * A277720 A333664 A090875

Adjacent sequences: A251487 A251488 A251489 * A251491 A251492 A251493

Keyword

nonn

Author

R. H. Hardin, Dec 03 2014

Status

approved