A185638 Number of (n+1)X3 0..3 arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum

404, 5068, 56558, 678268, 8069858, 96721922, 1158080514, 13877927240, 166291456824, 1992796227622, 23880775897200, 286180659773378, 3429500713226098, 41098227703695822, 492510011724491808

Offset

1,1

Comments

Column 2 of A185640

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 5X3
..2..0..2....0..0..3....2..0..2....2..0..0....2..2..2....0..0..2....2..2..2
..3..1..3....0..0..3....2..1..2....1..0..1....3..3..3....2..2..3....3..3..3
..0..0..2....0..0..1....2..2..2....3..3..3....3..2..1....3..3..3....1..1..0
..1..3..3....1..1..0....2..3..2....2..2..1....1..2..3....2..3..3....2..2..0
..2..2..0....0..1..1....1..3..1....2..2..1....2..1..0....0..2..2....3..3..1

Crossrefs

Sequence in context: A135791 A187382 A306308 * A332140 A198536 A337047

Adjacent sequences: A185635 A185636 A185637 * A185639 A185640 A185641

Keyword

nonn

Author

R. H. Hardin Feb 01 2011

Status

approved