A234232 Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

4160672, 77499592, 1418241440, 26695387444, 493912218368, 9404301310916, 175674272758048, 3389953175378924, 63975149541235808

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for n=1:
  0 6 4 6 2 0    0 0 7 1 4 6    0 0 5 0 1 0    0 0 2 7 6 2
  4 7 2 7 0 1    4 1 5 2 2 1    4 1 3 1 5 1    4 1 0 2 4 3

Crossrefs

Column 5 of A234233.

Sequence in context: A345627 A346345 A251371 * A140968 A363791 A251496

Adjacent sequences: A234229 A234230 A234231 * A234233 A234234 A234235

Keyword

nonn

Author

R. H. Hardin, Dec 21 2013

Status

approved