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A137763 Central elements in writing first the denominator and then the numerator(left to right) of Leibniz's harmonic-like triangle. +0
7
1, 1, 6, 5, 30, 31, 140, 209, 630, 1471, 2772, 10625 (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. A046201; A046204; A046205; A046206; A046208; A046212; A137752; A137753; A137754; A137755; A137756; A137757; A137758; A137759, A137760; A137761; A137762.

Sequence in context: A143130 A082384 A070399 this_sequence A029763 A038259 A130554

Adjacent sequences: A137760 A137761 A137762 this_sequence A137764 A137765 A137766

KEYWORD

nonn,tabl

AUTHOR

Mohammad K. Azarian (azarian(AT)evansville.edu), Feb 13 2008

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.


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