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Search: id:A058152
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| A058152 |
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Triangle: Number of asymmetric monoids of order n with k idempotents, considered to be equivalent when they are isomorphic or anti-isomorphic (by reversal of the operator). |
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+0
1
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| 1, 1, 1, 0, 3, 1, 0, 6, 8, 2, 0, 13, 36, 35, 7, 0, 93, 186, 297, 220, 37, 0, 2593, 1396, 2559, 3214, 1746, 263, 0
(list; table; graph; listen)
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OFFSET
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1,5
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LINKS
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Index entries for sequences related to monoids
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EXAMPLE
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1; 1,1; 0,3,1; 0,6,8,2; 0,13,36,35,7; ...
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CROSSREFS
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Row sums give A058136.
Sequence in context: A058150 A058151 A137651 this_sequence A058140 A074678 A130888
Adjacent sequences: A058149 A058150 A058151 this_sequence A058153 A058154 A058155
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KEYWORD
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nonn,tabl,more
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AUTHOR
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Christian G. Bower (bowerc(AT)usa.net), Nov 14 2000
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