login
A234983
Number of (n+1) X (n+1) 0..5 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).
0
90, 1490, 34608, 1525462, 128653892, 24740904388, 10857686727324, 11461385380110162
OFFSET
1,1
EXAMPLE
Some solutions for n=3:
3 4 0 1 0 3 2 3 1 2 1 0 3 5 0 1 0 1 4 5
0 3 1 4 3 4 1 4 4 3 4 1 0 4 1 4 1 0 1 4
3 4 0 1 2 5 4 5 3 4 3 2 3 5 4 5 4 5 4 5
4 3 1 4 0 1 2 1 4 3 0 1 0 4 1 0 3 2 3 2
CROSSREFS
Diagonal of A234991.
Sequence in context: A133350 A279438 A250869 * A166817 A166799 A001561
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2014
STATUS
approved