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A278632 Number of nX6 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes. 1
357, 175881, 48592635, 11719632199, 2593097277036, 521528860552802, 94782697883923436, 15624069731088285787, 2357725621673408985921, 329332639476242364241409, 43040255418713805460253898 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A278634.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..46

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Cf. A278634.

Sequence in context: A166913 A224434 A278412 * A108875 A236159 A280403

Adjacent sequences:  A278629 A278630 A278631 * A278633 A278634 A278635

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 24 2016

STATUS

approved

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Last modified June 13 11:33 EDT 2021. Contains 344990 sequences. (Running on oeis4.)