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A229605
Number of defective 3-colorings of an n X 7 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.
1
120, 15795, 792929, 31848813, 1153135492, 39229935270, 1279020266434, 40413033646242, 1246326317951687, 37697561397216125, 1122224822297521683, 32965710304040001780, 957481537679788357971, 27540249663372893582723
OFFSET
1,1
COMMENTS
Column 7 of A229606.
FORMULA
Empirical recurrence of order 46 (see link above).
EXAMPLE
Some solutions for n=3:
0 1 2 0 1 2 1 0 1 2 0 1 0 0 0 1 2 1 0 2 0
0 2 1 2 0 1 2 0 2 0 1 2 1 2 0 2 1 0 1 0 1
2 0 2 1 0 2 1 2 1 2 0 1 2 1 1 0 2 1 0 2 2
CROSSREFS
Cf. A229606.
Sequence in context: A121012 A250511 A151985 * A268474 A363516 A289566
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 26 2013
STATUS
approved