A253730 Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally and vertically.

1051870, 172901292, 37974926408, 8663276276434, 1912144574026028, 440533679097542155, 98462225092730752800, 22746082818241945125251, 5097086484432292252558188, 1177131995758338767197585571

Offset

1,1

Comments

Column 6 of A253731.

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

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

Crossrefs

Cf. A253731.

Sequence in context: A203668 A253312 A253660 * A043679 A162893 A234089

Adjacent sequences: A253727 A253728 A253729 * A253731 A253732 A253733

Keyword

nonn

Author

R. H. Hardin, Jan 10 2015

Status

approved