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A052584
A simple regular expression in a labeled universe.
+0
3
2, 2, 6, 30, 216, 2040, 23760, 327600, 5201280, 93260160, 1861574400, 40914720000, 981474278400, 25512104217600, 714251739801600, 21426244519680000, 685618901839872000, 23310686975127552000
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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