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A256036
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Triangle read by rows: number of idempotents of rank k in Brauer monoid B_n.
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0
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1, 0, 1, 1, 0, 1, 0, 9, 0, 1, 9, 0, 30, 0, 1, 0, 225, 0, 70, 0, 1, 225, 0, 1575, 0, 135, 0, 1, 0, 11025, 0, 6615, 0, 231, 0, 1, 11025, 0, 132300, 0, 20790, 0, 364, 0, 1, 0, 893025, 0, 873180, 0, 54054, 0, 540, 0, 1, 893025, 0, 16372125, 0, 4054050, 0, 122850, 0, 765, 0, 1
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graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,8
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LINKS
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EXAMPLE
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Triangle begins:
1
0, 1
1, 0, 1
0, 9, 0, 1
9, 0, 30, 0, 1
0, 225, 0, 70, 0, 1
225, 0, 1575, 0, 135, 0, 1
0, 11025, 0, 6615, 0, 231, 0, 1
11025, 0, 132300, 0, 20790, 0, 364, 0, 1
0, 893025, 0, 873180, 0, 54054, 0, 540, 0, 1
893025, 0, 16372125, 0, 4054050, 0, 122850, 0, 765, 0, 1
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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