A234160 Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1

649450, 193116778, 57647946980, 17566272589090, 5391006112450218, 1661285969383854576, 513096321262694789718, 158690337181889624875158, 49123836190724283158557568, 15216294709692549181512831606

Offset

1,1

Comments

Column 7 of A234161

Links

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

Example

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

Crossrefs

Sequence in context: A251398 A057847 A058327 * A105002 A162892 A232675

Adjacent sequences: A234157 A234158 A234159 * A234161 A234162 A234163

Keyword

nonn

Author

R. H. Hardin, Dec 20 2013

Status

approved