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A001691
Number of two-element generating sets in the symmetric group S_n.
(Formerly M4660 N1995)
+0
2
1, 9, 108, 3420, 114480, 7786800
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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