A234710 Number of (n+1) X (6+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).

1308890, 2630882, 5236698, 13445762, 33745850, 104373122, 311077338, 1093447730, 3669275930, 14155021442, 51830162298, 215521777682

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Column 6 of A234712.

Sequence in context: A066702 A261731 A141592 * A116495 A179584 A203868

Adjacent sequences: A234707 A234708 A234709 * A234711 A234712 A234713

Keyword

nonn

Author

R. H. Hardin, Dec 29 2013

Status

approved