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

Author

R. H. Hardin, Nov 27 2016

Keywords

• nonn

Comments

Column 5 of A278727.

Examples

			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
		

Links

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

Crossrefs

Cf. A278727.