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A278804
Number of n X 5 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order.
1
21, 336, 5767, 110455, 2179956, 41299256, 725674326, 11698232451, 172994405326, 2356249442222, 29713542257399, 348752692539813, 3828597575581476, 39486426123589674, 384123325152744838, 3537191225894230125
OFFSET
1,1
COMMENTS
Column 5 of A278807.
LINKS
EXAMPLE
Some solutions for n=4
..1..1..1..1..0. .1..1..0..0..0. .1..1..0..0..0. .1..1..0..0..0
..2..1..1..0..0. .1..1..1..0..0. .1..1..1..1..0. .1..1..1..1..0
..2..2..0..1..2. .1..1..2..2..2. .2..0..1..0..1. .1..1..2..1..2
..2..2..1..1..2. .2..1..1..2..2. .2..0..1..0..2. .2..1..1..1..0
CROSSREFS
Cf. A278807.
Sequence in context: A036224 A113895 A062260 * A166914 A020311 A295350
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 28 2016
STATUS
approved