A235025 Number of (n+1) X (7+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).

252032, 738516, 2152744, 6442252, 19332816, 58903452, 180093160, 557393032, 1730627064, 5432005844, 17096132520, 54343145508, 173136349816, 556684686328, 1793375906536, 5826684356844, 18962093125600, 62198608121156

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..29

Example

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

Crossrefs

Column 7 of A235026.

Sequence in context: A058004 A272438 A183668 * A237106 A113567 A083628

Adjacent sequences: A235022 A235023 A235024 * A235026 A235027 A235028

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved