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Search: id:A030450
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A030450 Related to number of elements in the free band (idempotent semigroup) on n generators. +0
4
1, 1, 4, 144, 331776, 2751882854400, 272622932796264897576960000, 3641839910835401567626683591527643364677019238400000000 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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