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0, 1, 1, 11, 76, 681, 5951, 55848, 535183, 5271067, 52869443, 538800385, 5561723366, 58036466462, 611198554760, 6487849585537, 69343498969503, 745643172902139, 8060711122273285, 87554655576067959, 955068718558844654, 10458203081050142684, 114918482735213986323
(list;
graph;
refs;
listen;
history;
text;
internal format)
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