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A278380 Number of nX3 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes. 1
0, 3, 74, 1220, 12910, 100807, 652343, 3750182, 19784428, 96786947, 439906101, 1859501560, 7328752206, 27039030100, 93829708460, 307762056698, 958683800155, 2848583303210, 8105942966932, 22169003715353, 58456685214757 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 3 of A278385.
LINKS
FORMULA
Empirical polynomial of degree 31 (see link above)
EXAMPLE
Some solutions for n=4
..1..0..0. .0..0..0. .1..1..0. .1..1..1. .1..1..0. .1..0..0. .0..1..1
..0..1..1. .1..0..0. .0..1..0. .1..1..0. .0..1..1. .0..0..0. .0..1..0
..1..0..1. .0..1..0. .1..0..1. .0..1..0. .0..1..0. .0..1..0. .1..1..0
..1..0..0. .0..1..0. .1..0..0. .0..1..0. .1..0..0. .1..0..1. .1..0..0
CROSSREFS
Cf. A278385.
Sequence in context: A215961 A231780 A093183 * A290774 A229852 A265956
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 20 2016
STATUS
approved

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Last modified June 15 13:08 EDT 2024. Contains 373407 sequences. (Running on oeis4.)