A234896 Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

365024, 3640580, 32110856, 385262124, 4244726408, 57645698844, 700047980248, 10265376879740, 130326665117372, 2018352283446692, 26192627176312696, 424153012852309716, 5568354008636865548, 93740476519314323292

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

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

Crossrefs

Column 6 of A234898.

Sequence in context: A229676 A230754 A205043 * A187437 A237390 A263237

Adjacent sequences: A234893 A234894 A234895 * A234897 A234898 A234899

Keyword

nonn

Author

R. H. Hardin, Jan 01 2014

Status

approved