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A137753
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First denominator and then numerator (left to right) of Leibniz's harmonic-like triangle.
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17
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1, 1, 2, 1, 2, 1, 3, 1, 6, 5, 3, 1, 4, 1, 12, 7, 12, 7, 4, 1, 5, 1, 20, 9, 30, 31, 20, 9, 5, 1, 6, 1, 30, 11, 60, 49, 60, 49, 30, 11, 6, 1, 7, 1, 42, 13, 105, 71, 140, 209, 105, 71, 42, 13, 7, 1, 8, 1, 56, 15, 168, 97, 280, 351, 280, 351, 168, 97
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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EXAMPLE
| 1/1; 1/2, 1/2; 1/3, 5/6, 1/3; 1/4, 7/12, 7/12, 1/4; 1/5, 9/20, 31/30, 9/20, 1/5;
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CROSSREFS
| Cf. A003506; A007622; A046201; A046204; A046205; A046206; A046208; A046212; A137752.
Cf. A137752
Sequence in context: A181472 A046205 A046206 * A134780 A154819 A104145
Adjacent sequences: A137750 A137751 A137752 * A137754 A137755 A137756
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KEYWORD
| frac,nonn,tabl
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AUTHOR
| Mohammad K. Azarian (azarian(AT)evansville.edu), Feb 10 2008
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