A234329 Number of (n+1) X (4+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).

13056, 203008, 3271560, 53812604, 886832036, 14698619604, 243143542208, 4038567639984, 66909511664976, 1112993440706864, 18463328032062420, 307559050379497960, 5108531833472596748, 85219174193834018396

Offset

1,1

Links

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

Example

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

Crossrefs

Column 4 of A234333.

Sequence in context: A252638 A252191 A256730 * A165679 A111887 A249495

Adjacent sequences: A234326 A234327 A234328 * A234330 A234331 A234332

Keyword

nonn

Author

R. H. Hardin, Dec 23 2013

Status

approved