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A234230 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 3 (constant-stress 1 X 1 tilings). 1
48592, 635904, 8260920, 108591688, 1418241440, 18729039912, 245685138024, 3261204356760, 42973192245160, 573587040137608, 7594066023919576, 101963002303378792, 1356695275793927016, 18330899102362639544 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=1:
7 2 3 1 0 3 4 4 3 4 5 2 2 1 0 1 6 3 5 2
4 2 6 7 4 4 2 5 0 4 2 2 1 3 5 3 7 7 6 0
CROSSREFS
Column 3 of A234233.
Sequence in context: A223935 A278020 A237105 * A251597 A228676 A268852
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 21 2013
STATUS
approved

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Last modified February 25 11:16 EST 2024. Contains 370325 sequences. (Running on oeis4.)