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A278366 Number of nX2 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes. 1
0, 0, 59, 1465, 19047, 194726, 1734714, 13506810, 91496261, 543067118, 2862579656, 13596395709, 58966870090, 236182156566, 882025314222, 3095734502639, 10279759883927, 32476397677376, 98079088190039, 284292946153409 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 2 of A278372.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical polynomial of degree 35

FORMULA

Empirical polynomial of degree 35 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A278372.

Sequence in context: A245941 A248620 A210398 * A134652 A017775 A017722

Adjacent sequences:  A278363 A278364 A278365 * A278367 A278368 A278369

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2016

STATUS

approved

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Last modified August 17 00:01 EDT 2022. Contains 356180 sequences. (Running on oeis4.)