A234495 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 2 (constant-stress 1 X 1 tilings).

728536, 13868952, 260915944, 5086391644, 96676755176, 1903351845712, 36413811919636, 723978446690964, 13939247152886086, 279988429351662724, 5425396461048839926, 110143792792197237708, 2148004969108734941480

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

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

Crossrefs

Column 5 of A234497.

Sequence in context: A252324 A204150 A321495 * A156867 A156868 A238297

Adjacent sequences: A234492 A234493 A234494 * A234496 A234497 A234498

Keyword

nonn

Author

R. H. Hardin, Dec 26 2013

Status

approved