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A000638 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)
+0
15
1, 1, 2, 4, 11, 19, 56, 96, 296, 554, 1593, 3094, 10723 (list; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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