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A235004 Number of (n+1) X (3+1) 0..7 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). 1
13848, 114796, 1053414, 11587376, 134675868, 1669957802, 21127926654, 272815283884, 3549809173852, 46538034485528, 612595559694614, 8095874587933366, 107312816116722666, 1426601565556675714 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=2:
0 3 2 1 1 4 7 6 2 6 1 2 3 2 6 4 6 3 4 3
1 2 3 0 0 1 2 3 1 3 0 3 4 1 7 3 3 2 1 2
0 3 6 5 4 7 6 5 0 4 3 4 7 2 6 4 7 4 5 4
CROSSREFS
Column 3 of A235007.
Sequence in context: A179582 A325886 A151642 * A263976 A189989 A069302
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2014
STATUS
approved

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Last modified July 20 22:04 EDT 2024. Contains 374461 sequences. (Running on oeis4.)