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A278609
Number of nX6 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.
1
728, 6208804, 23974522382, 70116431548595, 170796560376996116, 371605658574170955728, 735153310928503394971889, 1316116591708918219524268204, 2130452882466065540184080423698
OFFSET
1,1
COMMENTS
Column 6 of A278610.
LINKS
EXAMPLE
Some solutions for n=1
..3..2..0..1..3..0. .3..2..3..2..0..1. .1..3..1..3..1..0. .3..2..0..2..3..2
CROSSREFS
Cf. A278610.
Sequence in context: A203664 A265103 A050790 * A278894 A214106 A045791
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2016
STATUS
approved