A278730 - OEIS

%I #4 Nov 27 2016 07:14:31

%S 155,17352,1410818,99992428,6410559865,374757577056,19983433877142,

%T 971720519011047,43159978267689118,1757375854436887414,

%U 65916636060336105608,2289699277183162173304,74046423246945148450929

%N Number of nX4 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.

%C Column 4 of A278734.

%H R. H. Hardin, <a href="/A278730/b278730.txt">Table of n, a(n) for n = 1..133</a>

%e Some solutions for n=2

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

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

%Y Cf. A278734.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 27 2016