A234454 Number of (n+1) X (3+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

21344, 427956, 9249432, 207310120, 4726887280, 108833647220, 2516987045248, 58398272232836, 1356332197407768, 31546244050128332, 733745025666040408, 17081749645650678160, 397559951529941797856, 9259739427069345664228

Offset

1,1

Links

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

Example

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

Crossrefs

Column 3 of A234458.

Sequence in context: A253980 A349508 A250532 * A319017 A286635 A324259

Adjacent sequences: A234451 A234452 A234453 * A234455 A234456 A234457

Keyword

nonn

Author

R. H. Hardin, Dec 26 2013

Status

approved