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A038019
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Triangle: T(n,k), k<=n: groupoids with no symmetry with n elements and k idempotents.
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1
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1, 0, 1, 1, 4, 1, 969, 1431, 729, 108, 56615456, 75491208, 37741600, 8386560, 697501
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history;
text;
internal format)
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OFFSET
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0,5
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LINKS
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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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