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A278653 Number of nX5 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes. 1
6, 19893, 6920404, 1386399220, 208991393214, 25885621037640, 2738085955639984, 253197559557136896, 20837244744657222577, 1548877617380719532356, 105295704767594170862145, 6615650045831782073579069 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A278656.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..101

EXAMPLE

Some solutions for n=2

..1..1..1..2..2. .1..1..2..1..1. .0..2..1..0..1. .1..1..0..0..0

..2..0..1..0..2. .0..2..0..2..0. .0..1..2..0..2. .0..1..1..2..0

CROSSREFS

Cf. A278656.

Sequence in context: A079192 A278369 A283886 * A283887 A241650 A143780

Adjacent sequences:  A278650 A278651 A278652 * A278654 A278655 A278656

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 25 2016

STATUS

approved

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Last modified February 20 11:01 EST 2020. Contains 332073 sequences. (Running on oeis4.)