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

1,1

Comments

Column 4 of A278734.

Links

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

Example

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

Crossrefs

Cf. A278734.

Sequence in context: A110842 A289300 A220592 * A278432 A299829 A115466

Adjacent sequences: A278727 A278728 A278729 * A278731 A278732 A278733

Keyword

nonn

Author

R. H. Hardin, Nov 27 2016

Status

approved