A235023 Number of (n+1) X (5+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

17728, 56276, 177520, 569352, 1830768, 5939792, 19332816, 63383104, 208419288, 689828084, 2289281840, 7643260184, 25579743440, 86090061008, 290367977352, 984513862212, 3344650420632, 11418508246424, 39052982499640

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..184

Example

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

Crossrefs

Column 5 of A235026.

Sequence in context: A252513 A328868 A322552 * A133540 A237776 A151744

Adjacent sequences: A235020 A235021 A235022 * A235024 A235025 A235026

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved