A235246 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, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

288510, 599342, 1305758, 3521538, 9463558, 28726138, 85432998, 274327842, 861350910, 2864080130, 9315197206, 31814010530, 106323169366, 371685914410, 1271924315006, 4544534816810, 15898950277366, 58024454397690

Offset

1,1

Comments

Column 6 of A235248.

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

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

Crossrefs

Sequence in context: A237702 A043616 A249170 * A215997 A237147 A237556

Adjacent sequences: A235243 A235244 A235245 * A235247 A235248 A235249

Keyword

nonn

Author

R. H. Hardin, Jan 05 2014

Status

approved