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A278724 Number of nX5 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order. 1
56, 3492, 306070, 30942600, 3062815568, 279368748599, 23161560633508, 1747727428639023, 120668752462156921, 7668150385606788285, 451008119329650593967, 24676136165708649853590, 1261674436562343441025436 (list; graph; refs; listen; history; text; internal format)
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: A042513 A264941 A216704 * A277770 A239816 A220108

Adjacent sequences:  A278721 A278722 A278723 * A278725 A278726 A278727

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 27 2016

STATUS

approved

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Last modified August 20 23:06 EDT 2018. Contains 313929 sequences. (Running on oeis4.)