A254171 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

76832, 1014816, 13514192, 191190272, 2589374656, 34167243308, 443654425392, 5720473079212, 73617021646416, 947269263443756, 12190444367623280, 156900818355391996, 2019616532033996096, 25997546502044733452

Offset

1,1

Comments

Row 4 of A254168

Links

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

Example

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

Crossrefs

Sequence in context: A152498 A237747 A237746 * A254164 A254453 A234418

Adjacent sequences: A254168 A254169 A254170 * A254172 A254173 A254174

Keyword

nonn

Author

R. H. Hardin, Jan 26 2015

Status

approved