A278731 Number of nX5 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.

456, 121520, 28637916, 6410559865, 1351385130108, 268284486351027, 50067074390669892, 8732216738504713198, 1415177080112634284232, 212485358907612452321760, 29562031801069787043980684

Offset

1,1

Comments

Column 5 of A278734.

Links

R. H. Hardin, Table of n, a(n) for n = 1..50

Example

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

Crossrefs

Cf. A278734.

Sequence in context: A048110 A282101 A037945 * A282047 A278433 A278551

Adjacent sequences: A278728 A278729 A278730 * A278732 A278733 A278734

Keyword

nonn

Author

R. H. Hardin, Nov 27 2016

Status

approved