A278795 Number of n X 4 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.

65, 34348, 7196852, 1038462658, 118098679534, 11262497170744, 935318457135084, 69345852411053594, 4667384731526157594, 288452158499377948116, 16500830203851397115132, 878891304960177782094219, 43788704970632405698713439, 2048518813765704043678494853

Offset

1,1

Comments

Column 4 of A278798.

Links

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

Example

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

Crossrefs

Cf. A278798.

Sequence in context: A084225 A278550 A177652 * A289946 A219564 A183238

Adjacent sequences: A278792 A278793 A278794 * A278796 A278797 A278798

Keyword

nonn

Author

R. H. Hardin, Nov 28 2016

Status

approved