A234688 Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5 (constant-stress 1 X 1 tilings).

661952, 1253088, 2377712, 5614248, 13220576, 37361280, 104366624, 337733136, 1071197312, 3852945648, 13488692192, 52934698608, 200940369536, 848534610480, 3445424849504, 15464021986416, 66358350190592, 312931901162928

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

Example

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

Crossrefs

Column 6 of A234690.

Sequence in context: A254488 A253860 A203396 * A235210 A209596 A038827

Adjacent sequences: A234685 A234686 A234687 * A234689 A234690 A234691

Keyword

nonn

Author

R. H. Hardin, Dec 29 2013

Status

approved