A235105 Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

236496, 523532, 1201872, 2978124, 7614452, 20552136, 57035088, 165182704, 490588960, 1509762708, 4755375684, 15442715664, 51249301928, 174685145432, 607655794872, 2164160490812, 7854511637236, 29102005370312, 109687007091232

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..30

Example

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

Crossrefs

Column 6 of A235107.

Sequence in context: A269280 A092009 A160920 * A205411 A219921 A344352

Adjacent sequences: A235102 A235103 A235104 * A235106 A235107 A235108

Keyword

nonn

Author

R. H. Hardin, Jan 03 2014

Status

approved