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A080044
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Numerators of triangular array: T(n,1)=T(n,n)=1/n and T(n,k)=T(n-1,k-1)+T(n-1,k), 1<k<n.
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1
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1, 1, 1, 1, 1, 1, 1, 4, 4, 1, 1, 19, 8, 19, 1, 1, 107, 17, 17, 107, 1, 1, 39, 181, 17, 181, 39, 1, 1, 293, 479, 218, 218, 479, 293, 1, 1, 621, 1058, 1351, 436, 1351, 1058, 621, 1, 1, 5869, 10327, 4563, 619, 619, 4563, 10327, 5869, 1, 1, 6121, 3685, 7541, 17677, 619, 17677
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OFFSET
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1,8
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LINKS
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EXAMPLE
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Triangle begins:.................. Numerators:
.............1/1.........................1
..........1/2...1/2....................1...1
.......1/3...1/1...1/3...............1...1...1
....1/4...4/3...4/3...1/4..........1...4...4...1
.1/5..19/12..8/3..19/12..1/5.....1..19...8..19...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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