A234663 Number of (n+1) X (5+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).

417050, 1566596, 5969944, 23814574, 96408730, 406314140, 1736939430, 7695605586, 34563948112, 160286890226, 753070652682, 3641338746212, 17827388594990, 89569410664562, 455342474969544, 2369222376651354

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

Some solutions for n=1:
  0 1 6 1 4 4    3 6 4 6 4 0    0 4 5 5 6 1    3 2 5 5 5 4
  0 5 6 5 4 0    4 3 5 3 5 5    5 5 2 6 3 2    0 3 2 6 2 5

Crossrefs

Column 5 of A234665.

Sequence in context: A178203 A152869 A251960 * A183591 A184770 A236909

Adjacent sequences: A234660 A234661 A234662 * A234664 A234665 A234666

Keyword

nonn

Author

R. H. Hardin, Dec 29 2013

Status

approved