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A245152
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Number of n-node unlabeled rooted trees with thickening limbs.
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2
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1, 1, 2, 3, 5, 7, 12, 17, 28, 42, 69, 105, 176, 275, 460, 740, 1244, 2030, 3440, 5695, 9688, 16243, 27758, 46948, 80610, 137401, 236796, 406258, 702720, 1211954, 2103536, 3644413, 6344632, 11035287, 19265731, 33621510, 58848963, 103003059, 180712466, 317122290
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