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A234897 Number of (n+1) X (7+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). 0
1676576, 19965444, 208211944, 3064189932, 41268054688, 700047980248, 10593797616896, 196773939067288, 3144319026581672, 62377683142994196 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=1:
0 2 0 4 2 4 1 2 0 2 1 5 0 5 3 1 0 4 0 2 3 0 3 2
3 4 3 6 5 6 2 4 4 5 3 6 2 6 5 2 3 6 3 4 6 2 6 4
CROSSREFS
Column 7 of A234898.
Sequence in context: A158957 A136295 A250932 * A126437 A016868 A016916
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2014
STATUS
approved

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Last modified April 16 10:25 EDT 2024. Contains 371701 sequences. (Running on oeis4.)