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A229642 Number of defective 3-colorings of a 6 X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order. 1
0, 3924, 50084, 747299, 11485716, 170405645, 2495874984, 35693194243, 503332240292, 6990933433009, 96001895136772, 1304362116389856, 17565879194817688, 234673938451844201, 3113368949256998744 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A229637.

LINKS

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

R. H. Hardin, Empirical recurrence of order 69

FORMULA

Empirical recurrence of order 69 (see link above).

EXAMPLE

Some solutions for n=3:

  0 1 0   0 1 0   0 1 0   0 1 0   0 1 0   0 1 0   0 1 0

  2 1 2   2 1 2   2 1 0   2 1 2   0 1 0   0 2 1   1 2 1

  2 1 0   1 1 0   2 0 1   1 0 1   2 0 2   0 1 0   1 0 1

  2 1 0   0 2 0   2 0 1   1 0 1   1 0 2   2 1 0   2 0 2

  1 2 0   1 2 0   1 0 1   1 0 2   1 0 1   2 1 0   2 1 2

  0 2 1   0 2 1   2 0 1   1 0 2   2 0 1   0 1 0   2 0 2

CROSSREFS

Sequence in context: A221239 A136459 A235315 * A266060 A034283 A335789

Adjacent sequences:  A229639 A229640 A229641 * A229643 A229644 A229645

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 27 2013

STATUS

approved

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Last modified October 19 17:46 EDT 2021. Contains 348091 sequences. (Running on oeis4.)