A234166 Number of (n+1) X (5+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).

135752, 1353986, 13227132, 133660366, 1337127500, 13865878254, 142146253428, 1522643238010, 16046511409532, 178461791019294, 1937406142076504, 22439896070267726, 250913740402044536, 3027301828590118642

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..71

Example

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

Crossrefs

Column 5 of A234169.

Sequence in context: A235209 A183734 A198166 * A023341 A172887 A330399

Adjacent sequences: A234163 A234164 A234165 * A234167 A234168 A234169

Keyword

nonn

Author

R. H. Hardin, Dec 20 2013

Status

approved