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1, 1, 2, 1, 5, 5, 41, 36, 199, 420, 1377, 4140, 10728, 36839, 87400, 283225, 660812, 1940633, 4609045, 12276261, 29878104, 73822900, 181872899, 428160287, 1053371836, 2416581766, 5864707345, 13309989382, 31614183273, 71451195226
(list;
graph;
refs;
listen;
history;
text;
internal format)
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