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A137762
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Central elements in writing first the numerator and then the denominator (left to right) of Leibniz's harmonic-like triangle.
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7
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1, 1, 5, 6, 31, 30, 209, 140, 1471, 630, 10625, 2772
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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LINKS
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FORMULA
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EXAMPLE
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1/1; --> 1 1
1/2, 1/2; -->
1/3, 5/6, 1/3; --> 5 6
1/4, 7/12, 7/12, 1/4; --> ...
1/5, 9/20, 31/30, 9/20, 1/5;
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CROSSREFS
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KEYWORD
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nonn,tabf,frac
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AUTHOR
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STATUS
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approved
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