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A278302 Number of n X n 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake. 0
0, 32, 4558, 2360544, 6345491150, 100825279690194, 10174217016822816668, 6850575319751106211878878 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A278309.

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A278309.

Sequence in context: A291829 A248075 A248000 * A071310 A265371 A232913

Adjacent sequences:  A278299 A278300 A278301 * A278303 A278304 A278305

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2016

STATUS

approved

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Last modified August 3 13:55 EDT 2021. Contains 346438 sequences. (Running on oeis4.)