A234709 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 6 (constant-stress 1 X 1 tilings).

239890, 546362, 1224482, 3530906, 9883666, 33745850, 110368418, 422926922, 1539486130, 6426536762, 25340269442, 113375190506, 476659333906, 2260963791770, 10021628642018, 49938507501002, 231142527406450

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

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

Crossrefs

Column 5 of A234712.

Sequence in context: A122210 A237396 A234547 * A015345 A187960 A190388

Adjacent sequences: A234706 A234707 A234708 * A234710 A234711 A234712

Keyword

nonn

Author

R. H. Hardin, Dec 29 2013

Status

approved