A253736 Number of (n+2)X(4+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically

6932, 9876, 17608, 54688, 143080, 345304, 922004, 2750948, 7532104, 19629020, 54002636, 156395176, 431245644, 1157344788, 3200744100, 9082171160, 25099285504, 68356417780, 189256505056, 530927271980, 1468646504672

Offset

1,1

Comments

Column 4 of A253740

Links

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

Example

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

Crossrefs

Sequence in context: A253612 A004243 A004244 * A004245 A195280 A059462

Adjacent sequences: A253733 A253734 A253735 * A253737 A253738 A253739

Keyword

nonn

Author

R. H. Hardin, Jan 11 2015

Status

approved