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Search: id:A000638
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| A000638 |
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Number of permutation groups of degree n; also number of conjugacy classes of subgroups of symmetric group S_n; also number of molecular species of degree n. (Formerly M1244 N0477)
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+0 15
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| 1, 1, 2, 4, 11, 19, 56, 96, 296, 554, 1593, 3094, 10723
(list; graph; listen)
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