A278724 Number of nX5 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.

56, 3492, 306070, 30942600, 3062815568, 279368748599, 23161560633508, 1747727428639023, 120668752462156921, 7668150385606788285, 451008119329650593967, 24676136165708649853590, 1261674436562343441025436

Offset

1,1

Comments

Column 5 of A278727.

Links

R. H. Hardin, Table of n, a(n) for n = 1..53

Example

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

Crossrefs

Cf. A278727.

Sequence in context: A264941 A358115 A216704 * A277770 A239816 A220108

Adjacent sequences: A278721 A278722 A278723 * A278725 A278726 A278727

Keyword

nonn

Author

R. H. Hardin, Nov 27 2016

Status

approved