A253661 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally

7027770, 65613880, 1302707432, 21597168872, 395496194486, 6834913762178, 120664495291772, 2048348414354484, 35489593077789928, 612083566702759784, 10460295715223145138, 178928527278695650414, 3077810357108454233698

Offset

1,1

Comments

Column 7 of A253662

Links

R. H. Hardin, Table of n, a(n) for n = 1..35

Example

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

Crossrefs

Sequence in context: A106786 A206634 A253313 * A088286 A175530 A320623

Adjacent sequences: A253658 A253659 A253660 * A253662 A253663 A253664

Keyword

nonn

Author

R. H. Hardin, Jan 07 2015

Status

approved