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A229453 Number of defective 3-colorings of an n X n 0..2 array connected horizontally and vertically with exactly one mistake and colors introduced in row-major 0..2 order 1
0, 4, 140, 7940, 903332, 221410052, 120864516084, 149656305350148, 425051698921207676, 2789532529161418879776, 42518582519087835706922360, 1510724712014268724836823960708, 125472358126936901810932026644960976 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A229460

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A270065 A002917 A235536 * A215606 A119038 A048432

Adjacent sequences:  A229450 A229451 A229452 * A229454 A229455 A229456

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 24 2013

STATUS

approved

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Last modified November 15 01:25 EST 2019. Contains 329143 sequences. (Running on oeis4.)