A234331 Number of (n+1) X (6+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

397056, 12713312, 425662432, 14698619604, 508700005648, 17748461638244, 617580751794644, 21603778650646796, 753131400252014904, 26388038890028262520, 921179431749476482344, 32324717199948335180560

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..61

Example

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

Crossrefs

Column 6 of A234333.

Sequence in context: A050434 A224630 A251341 * A250925 A230148 A209784

Adjacent sequences: A234328 A234329 A234330 * A234332 A234333 A234334

Keyword

nonn

Author

R. H. Hardin, Dec 23 2013

Status

approved