A229642 - OEIS

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.

0, 3924, 50084, 747299, 11485716, 170405645, 2495874984, 35693194243, 503332240292, 6990933433009, 96001895136772, 1304362116389856, 17565879194817688, 234673938451844201, 3113368949256998744

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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