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A278894 Number of nX6 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes. 1
728, 7709668, 27351484380, 69420349158080, 143827898685401892, 255381654976413401664, 398752554782396916414790, 556345120757052440184428640, 701731665791093785660064537242 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A278896.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for n=1

..1..2..3..2..0..1. .1..2..3..0..3..1. .0..1..0..1..2..1. .2..3..2..0..1..2

CROSSREFS

Cf. A278896.

Sequence in context: A265103 A050790 A278609 * A214106 A045791 A088035

Adjacent sequences:  A278891 A278892 A278893 * A278895 A278896 A278897

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 30 2016

STATUS

approved

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Last modified January 17 19:58 EST 2019. Contains 319251 sequences. (Running on oeis4.)