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A229631
Number of defective 3-colorings of an n X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
0
0, 6, 244, 10227, 960325, 170405645, 61836040854, 45634751291449, 69219300810586905, 216612095709360988933, 1408049695722118625807058, 18999842797533792961661827884
OFFSET
1,2
COMMENTS
Diagonal of A229637.
EXAMPLE
Some solutions for n=3:
0 0 1 0 1 2 0 1 0 0 1 2 0 1 0 0 0 1 0 1 2
1 2 0 1 0 2 0 1 2 2 1 2 2 0 2 1 0 2 0 1 2
1 2 1 2 0 2 0 1 1 0 2 0 2 0 1 1 0 1 2 1 1
CROSSREFS
Cf. A229637.
Sequence in context: A254009 A072228 A322559 * A206307 A229475 A281054
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 27 2013
STATUS
approved