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A278733
Number of n X 7 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.
0
2472, 3633649, 7907770636, 19983433877142, 50067074390669892, 119979123054325787300, 276347089984710259199248, 616342267580395469193910007
OFFSET
1,1
COMMENTS
Column 7 of A278734.
EXAMPLE
Some solutions for n=1
..2..2..0..2..2..1..0. .2..0..0..0..0..0..1. .3..2..2..1..1..0..2
CROSSREFS
Cf. A278734.
Sequence in context: A224723 A183703 A282559 * A236785 A020411 A124594
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 27 2016
STATUS
approved