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A137753 First denominator and then numerator (left to right) of Leibniz's harmonic-like triangle. +0
18
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; listen)
OFFSET

1,3

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;

CROSSREFS

Cf. A003506; A007622; A046201; A046204; A046205; A046206; A046208; A046212; A137752.

Cf. A137752

Sequence in context: A138224 A046205 A046206 this_sequence A134780 A154819 A104145

Adjacent sequences: A137750 A137751 A137752 this_sequence A137754 A137755 A137756

KEYWORD

frac,nonn,tabl

AUTHOR

Mohammad K. Azarian (azarian(AT)evansville.edu), Feb 10 2008

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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