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A278651 Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes. 1

%I #4 Nov 25 2016 07:37:32

%S 0,24,3626,210616,6920404,159247403,2864009499,42845787540,

%T 554117433244,6355099136464,65799797930768,623184291450452,

%U 5453523684543697,44451113263114337,339679040853270337,2446811447909875619

%N Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.

%C Column 3 of A278656.

%H R. H. Hardin, <a href="/A278651/b278651.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A278651/a278651.txt">Empirical polynomial of degree 97</a>

%F Empirical polynomial of degree 97 (see link above)

%e Some solutions for n=3

%e ..2..0..1. .2..0..2. .0..0..1. .0..1..2. .2..1..2. .0..1..2. .2..2..1

%e ..1..1..1. .2..0..1. .1..1..0. .2..0..0. .2..1..0. .2..1..1. .1..2..1

%e ..1..0..2. .1..0..0. .0..2..1. .1..2..1. .0..1..2. .0..2..0. .0..0..2

%Y Cf. A278656.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 25 2016

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Last modified August 3 13:42 EDT 2024. Contains 374894 sequences. (Running on oeis4.)