A278729 - OEIS

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A278729

Number of nX3 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.

1

40, 1947, 58904, 1410818, 28637916, 506031118, 7907770636, 110655824716, 1401584381570, 16222274394016, 173007912264684, 1712497545142699, 15831976807688826, 137451501603516285, 1125976516897709842

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 3 of A278734.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical polynomial of degree 109

FORMULA

Empirical polynomial of degree 109 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A308836 A189503 A190076 * A189550 A300116 A060056

Adjacent sequences: A278726 A278727 A278728 * A278730 A278731 A278732

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 27 2016

STATUS

approved