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A172914 Number of 3*n X n 0..6 arrays with row sums 6 and column sums 18 1

%I

%S 1,9331,69327885583,69404300198350892236,

%T 3373513537183933018216388397350,

%U 4081159676302022080974044453167358453805921,76587973156243192496223417009664279130517333252040973460

%N Number of 3*n X n 0..6 arrays with row sums 6 and column sums 18

%H R. H. Hardin, <a href="/A172914/b172914.txt">Table of n, a(n) for n=1..11</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010

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Last modified June 25 12:55 EDT 2022. Contains 354851 sequences. (Running on oeis4.)