A235104 Number of (n+1) X (5+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).

54530, 135254, 345280, 937034, 2613410, 7614452, 22754394, 70442910, 223243440, 729220586, 2434648618, 8347808524, 29216007122, 104694635214, 382384146184, 1425884641650, 5409095808786, 20886702277500, 81856766900850

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..80

Example

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

Crossrefs

Column 5 of A235107.

Sequence in context: A203624 A250857 A083616 * A205997 A091536 A237732

Adjacent sequences: A235101 A235102 A235103 * A235105 A235106 A235107

Keyword

nonn

Author

R. H. Hardin, Jan 03 2014

Status

approved