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A278674 Number of nX6 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake. 1
35, 532, 4999, 38848, 280616, 1998526, 14437336, 106388729, 791018703, 5827280865, 41816145745, 288815214521, 1906968251924, 12001457552556, 71956255780683, 411365841721218, 2245996961511549, 11734146676561159 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A278676.
LINKS
FORMULA
Empirical polynomial of degree 70 (see link above)
EXAMPLE
Some solutions for n=4
..1..1..0..0..0..0. .1..1..1..0..0..0. .0..1..1..1..0..0. .1..0..0..0..0..0
..1..1..1..1..1..0. .1..1..1..1..1..0. .1..0..0..0..0..0. .1..1..1..1..1..0
..1..0..1..1..1..1. .1..1..0..1..1..0. .1..1..0..0..1..0. .0..0..0..0..0..1
..1..1..1..1..1..0. .1..1..1..0..0..0. .1..1..1..1..1..1. .0..1..1..1..0..0
CROSSREFS
Cf. A278676.
Sequence in context: A177079 A107915 A219370 * A219468 A267281 A114342
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2016
STATUS
approved

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Last modified June 13 03:56 EDT 2024. Contains 373366 sequences. (Running on oeis4.)