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A278368 Number of nX4 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes. 1

%I

%S 0,1465,184341,16073852,1185617520,71569971497,3591161445506,

%T 156509651392363,6152096549069001,222794729697445622,

%U 7488691646485617892,233747568592586647588,6769664767684601132112,181975875729049004082635

%N Number of nX4 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

%C Column 4 of A278372.

%H R. H. Hardin, <a href="/A278368/b278368.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A278372.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 19 2016

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Last modified August 17 05:07 EDT 2022. Contains 356184 sequences. (Running on oeis4.)