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A234704
Number of (n+1) X (n+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constantstress 1 X 1 tilings).
0
322, 7154, 87698, 1108418, 9883666, 104373122, 850224914, 8324205794
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
Some solutions for n=3:
6 2 2 2 2 5 4 5 0 5 0 6 3 6 2 3 4 3 5 1
4 6 0 6 4 1 6 1 6 5 6 6 7 4 6 1 2 7 3 5
7 3 3 3 2 5 4 5 1 6 1 7 4 7 3 4 6 5 7 3
4 6 0 6 3 0 5 0 1 0 1 1 6 3 5 0 1 6 2 4
CROSSREFS
Diagonal of
A234712
.
Sequence in context:
A234712
A234705
A324629
*
A266885
A253368
A334182
Adjacent sequences:
A234701
A234702
A234703
*
A234705
A234706
A234707
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Dec 29 2013
STATUS
approved
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Last modified August 12 18:44 EDT 2024. Contains 375113 sequences. (Running on oeis4.)