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Number of nX3 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
2

%I #5 Jan 23 2016 09:59:51

%S 64,4096,216000,10941048,519718464,23689358848,1040125019968,

%T 44297983526887,1837365396992000,74486671360299008,

%U 2959536976199968256,115510695146966939968,4436989542752316253696,167999383203780355895296

%N Number of nX3 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.

%C Column 3 of A267974.

%H R. H. Hardin, <a href="/A267971/b267971.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A267971/a267971.txt">Empirical recurrence of order 40</a>

%F Empirical recurrence of order 40 (see link above)

%e Some solutions for n=2

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

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

%Y Cf. A267974.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 23 2016