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.

2472, 3633649, 7907770636, 19983433877142, 50067074390669892, 119979123054325787300, 276347089984710259199248, 616342267580395469193910007

Offset: 1

Author

R. H. Hardin, Nov 27 2016

Keywords

• nonn

Comments

Column 7 of A278734.

Examples

			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.