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A278653
Number of nX5 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
1
6, 19893, 6920404, 1386399220, 208991393214, 25885621037640, 2738085955639984, 253197559557136896, 20837244744657222577, 1548877617380719532356, 105295704767594170862145, 6615650045831782073579069
OFFSET
1,1
COMMENTS
Column 5 of A278656.
LINKS
EXAMPLE
Some solutions for n=2
..1..1..1..2..2. .1..1..2..1..1. .0..2..1..0..1. .1..1..0..0..0
..2..0..1..0..2. .0..2..0..2..0. .0..1..2..0..2. .0..1..1..2..0
CROSSREFS
Cf. A278656.
Sequence in context: A079192 A278369 A283886 * A376824 A283887 A241650
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2016
STATUS
approved