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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 Cf. A278734. 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

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Last modified October 29 04:54 EDT 2020. Contains 338066 sequences. (Running on oeis4.)