A234888 Number of (n+1) X (6+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

31064, 159004, 706992, 4616452, 26272908, 198069616, 1249781316, 10302188956, 68182126892, 598458783660, 4061087277028, 37320220056152, 256928073051092, 2440338300882200, 16949368737198628, 164723686282956960

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..112

Example

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

Crossrefs

Column 6 of A234890.

Sequence in context: A143162 A256747 A090059 * A151815 A331675 A285695

Adjacent sequences: A234885 A234886 A234887 * A234889 A234890 A234891

Keyword

nonn

Author

R. H. Hardin, Jan 01 2014

Status

approved