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A278413
Number of nX7 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.
1
1107, 1046418, 859516239, 724313811311, 615691843257769, 495717541750226155, 361990594590395633400, 238604620055755341800773, 144303226542829352792147114, 81817177352955986859566458268
OFFSET
1,1
COMMENTS
Column 7 of A278414.
LINKS
EXAMPLE
Some solutions for n=1
..2..1..1..1..2..1..2. .2..0..1..0..0..1..1. .1..2..2..0..2..1..2
CROSSREFS
Cf. A278414.
Sequence in context: A184370 A172638 A278633 * A172739 A172815 A172866
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 21 2016
STATUS
approved