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2, 2, 2, 3, 4, 5, 7, 10, 13, 18, 25, 35, 48, 67, 93, 129, 179, 249, 346, 481, 668, 928, 1290, 1792, 2491, 3462, 4811, 6686, 9292, 12913, 17946, 24940, 34660, 48169, 66942, 93032, 129291, 179681, 249711, 347034, 482289, 670259, 931489
(list;
graph;
refs;
listen;
history;
text;
internal format)
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