A235006 Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

800688, 10000516, 134675868, 2432380948, 46824470810, 1023928807600, 23068624328596, 544357864407132, 13010345726764094, 316562479103386210, 7758402318655762328, 191878584064285621856, 4772767526013594631268

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..22

Example

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

Crossrefs

Column 5 of A235007.

Sequence in context: A053086 A106781 A112451 * A231629 A231090 A237298

Adjacent sequences: A235003 A235004 A235005 * A235007 A235008 A235009

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved