A253738 Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically

70372, 60296, 102616, 345304, 1059528, 3369876, 11094376, 37875928, 127687424, 433506104, 1487290348, 5103062308, 17364021560, 59364164632, 203858329876, 698483613236, 2384062595156, 8159195917844, 27983085762376, 95827264556920

Offset

1,1

Comments

Column 6 of A253740

Links

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

Example

Some solutions for n=3
..1..1..0..1..1..1..0..0....0..0..1..0..0..0..1..1....1..0..0..0..1..0..1..0
..0..0..1..1..1..0..1..0....0..1..0..0..0..1..0..1....0..1..0..0..0..1..0..0
..0..1..1..1..0..1..1..1....0..0..0..0..1..0..0..0....0..1..1..0..0..0..1..0
..0..0..1..0..1..1..1..0....0..1..0..1..0..0..0..1....1..1..1..1..0..0..0..1
..0..1..0..1..0..1..0..1....0..0..1..0..1..0..1..0....1..1..0..0..1..0..1..1

Crossrefs

Sequence in context: A224464 A233987 A243135 * A252104 A236016 A204482

Adjacent sequences: A253735 A253736 A253737 * A253739 A253740 A253741

Keyword

nonn

Author

R. H. Hardin, Jan 11 2015

Status

approved