A278730 Number of nX4 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.

155, 17352, 1410818, 99992428, 6410559865, 374757577056, 19983433877142, 971720519011047, 43159978267689118, 1757375854436887414, 65916636060336105608, 2289699277183162173304, 74046423246945148450929

Offset: 1

Author

R. H. Hardin, Nov 27 2016

Keywords

• nonn

Comments

Column 4 of A278734.

Examples

			Some solutions for n=2
..2..0..3..1. .2..0..2..2. .1..1..2..2. .3..0..3..2. .0..3..1..1
..3..2..0..3. .2..2..2..1. .3..1..2..0. .3..1..0..1. .2..0..1..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..133

Crossrefs

Cf. A278734.