A278370 - OEIS

%I #4 Nov 19 2016 12:53:52

%S 77,194726,138641633,71569971497,30875729085512,11975306266312114,

%T 4248736162137280596,1369281911256465678346,399847654202980383002891,

%U 106575448365556432324891769,26256730686462803008566514303

%N Number of nX6 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

%C Column 6 of A278372.

%H R. H. Hardin, <a href="/A278370/b278370.txt">Table of n, a(n) for n = 1..45</a>

%e Some solutions for n=2

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

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

%Y Cf. A278372.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 19 2016