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COMMENTS
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See A210109 for further information.
Row sums of the following table which shows how many words of length n over a 3-letter alphabet are 5-divided in k>=1 different ways:
15;
103,43,20;
546,236,162,84,28,51,16,8,5;
2118,1211,848,480,...
-R. J. Mathar, Mar 25 2012
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