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A229643 Number of defective 3-colorings of a 7 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, 15795, 277996, 6049298, 133784624, 2902520386, 61836040854, 1290897457785, 26533491049453, 537479161392127, 10758714918897447, 213067493458619915, 4181337838281995586, 81391742898664549466, 1573067212373296604298 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 7 of A229637.
LINKS
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 0 0 1 2 0 1 2 0 1 2 2 1 0 0 1 0 0 1 2
2 2 0 0 2 1 0 0 2 2 1 0 0 2 2 0 1 0 0 1 0
0 1 0 1 2 0 2 1 2 1 2 0 0 1 0 2 1 2 0 2 0
0 2 0 1 2 0 2 1 0 1 2 0 0 2 0 0 2 0 0 1 1
0 1 0 0 2 0 0 1 0 1 2 1 0 2 1 1 2 1 0 1 2
0 1 2 0 2 0 2 1 0 1 2 0 1 2 1 0 2 0 2 1 0
CROSSREFS
Sequence in context: A235530 A116493 A061733 * A216180 A112450 A063847
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 27 2013
STATUS
approved

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Last modified March 1 19:16 EST 2024. Contains 370443 sequences. (Running on oeis4.)