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A278797
Number of nX6 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
1
2128, 4888659, 7804657491, 11262497170744, 14688350983557860, 17132175867394310218, 17905720402390042972393, 16929268110709399178933670, 14654548270532478576848465454, 11752173813052078583219415650082
OFFSET
1,1
COMMENTS
Column 6 of A278798.
LINKS
EXAMPLE
Some solutions for n=1
..3..1..3..3..0..1. .3..0..0..3..0..1. .0..1..1..0..3..0. .0..3..0..2..2..2
CROSSREFS
Cf. A278798.
Sequence in context: A321117 A337644 A278552 * A251134 A338070 A210271
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 28 2016
STATUS
approved