A235070 Number of (n+1) X (7+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

3167392, 20896656, 144439680, 1158928396, 9228249720, 77175918060, 639912767992, 5481037968792, 46648797716992, 409125714780992

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Column 7 of A235071.

Sequence in context: A067899 A234449 A204629 * A203877 A032783 A034638

Adjacent sequences: A235067 A235068 A235069 * A235071 A235072 A235073

Keyword

nonn

Author

R. H. Hardin, Jan 03 2014

Status

approved