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Number of nX5 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.
1

%I #4 Nov 22 2016 06:54:26

%S 456,178352,67971132,23450120081,7817299555828,2573951428892959,

%T 803631265741510560,228568783548126804702,58279844921391047673160,

%U 13321187192307993333262298,2747056699156070175271175528

%N Number of nX5 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

%C Column 5 of A278435.

%H R. H. Hardin, <a href="/A278433/b278433.txt">Table of n, a(n) for n = 1..50</a>

%e Some solutions for n=2

%e ..0..0..1..1..1. .0..1..0..0..3. .0..0..1..2..0. .0..3..0..0..1

%e ..0..2..0..3..1. .0..3..0..0..2. .2..2..0..2..2. .1..3..1..3..1

%Y Cf. A278435.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 22 2016