A234989 Number of (n+1) X (6+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

163416, 1026784, 8616068, 105948984, 1507413164, 24740904388, 433293595046, 8076317372004, 155302530533130, 3074015131838128, 61768316675114716, 1258147349976954976, 25815980445306370036, 533174799308048822422

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..41

Example

Some solutions for n=1:
  1 0 5 4 5 2 1        3 4 3 2 3 2 5        4 3 5 4 3 4 2
  4 1 4 5 4 3 0        0 3 4 5 4 1 2        3 0 4 1 2 5 1

Crossrefs

Column 6 of A234991.

Sequence in context: A230925 A204653 A031677 * A110072 A196675 A034603

Adjacent sequences: A234986 A234987 A234988 * A234990 A234991 A234992

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved