A235005 Number of (n+1) X (4+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).

104338, 1049470, 11587376, 162585790, 2432380948, 40037217640, 676947457572, 11824787869510, 208878010076942, 3736584044188300, 67274015119680910, 1219544630997859452, 22219457252029643404, 406909415794274700932

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..83

Example

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

Crossrefs

Column 4 of A235007.

Sequence in context: A129241 A290535 A253709 * A231143 A249528 A233857

Adjacent sequences: A235002 A235003 A235004 * A235006 A235007 A235008

Keyword

nonn

Author

R. H. Hardin, Jan 02 2014

Status

approved