A254478 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically

12260, 50454, 211579, 686988, 2289173, 7113819, 22624962, 68677228, 207208428, 608944631, 1780628620, 5159525456, 14933521713, 43117561790, 124499677479, 359267692474, 1036713990381, 2990837952514, 8627840211075, 24886681311098

Offset

1,1

Comments

Column 3 of A254483

Links

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

Example

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

Crossrefs

Sequence in context: A252497 A254548 A254555 * A186046 A358320 A358022

Adjacent sequences: A254475 A254476 A254477 * A254479 A254480 A254481

Keyword

nonn

Author

R. H. Hardin, Jan 31 2015

Status

approved