A278607 Number of nX4 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

1, 16224, 5985658, 1608427228, 371601597959, 70116431548595, 10962535851392548, 1484609498751465944, 180746700125333897094, 20196427927488082918343, 2086680362256607056736883

Offset

1,2

Comments

Column 4 of A278610.

Links

R. H. Hardin, Table of n, a(n) for n = 1..132

Example

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

Crossrefs

Cf. A278610.

Sequence in context: A031843 A031624 A035921 * A235845 A254163 A254170

Adjacent sequences: A278604 A278605 A278606 * A278608 A278609 A278610

Keyword

nonn

Author

R. H. Hardin, Nov 23 2016

Status

approved