A253735 Number of (n+2)X(3+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically

2212, 4100, 7216, 17608, 44332, 102616, 243796, 599920, 1495128, 3650772, 8912248, 21950456, 54561592, 133987004, 330069048, 813259848, 2014417284, 4957347368, 12243687824, 30160503772, 74615015336, 183748891424, 454096916844

Offset

1,1

Comments

Column 3 of A253740

Links

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

Example

Some solutions for n=4
..0..0..0..0..0....1..1..0..1..1....0..1..0..0..1....1..1..1..0..0
..0..1..0..1..1....1..0..1..1..1....0..0..0..0..0....0..1..1..1..0
..1..1..1..0..1....0..1..1..1..0....1..1..0..1..1....1..0..1..1..1
..0..1..1..1..0....1..0..1..0..1....0..1..0..0..1....1..1..0..1..1
..1..0..1..0..1....0..0..0..1..1....1..1..1..1..1....1..0..1..0..1
..0..1..0..1..0....0..0..1..0..0....1..1..0..1..1....1..1..1..1..0

Crossrefs

Sequence in context: A238456 A031725 A077693 * A259892 A337160 A138079

Adjacent sequences: A253732 A253733 A253734 * A253736 A253737 A253738

Keyword

nonn

Author

R. H. Hardin, Jan 11 2015

Status

approved