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A157806 Absolute value of the difference between numerator and denominator of fractions arranged by Cantor's ordering (1/1, 2/1, 1/2, 1/3, 3/1, 4/1, 3/2, 2/3, 1/4, 1/5, 5/1, 6/1, ...) with equivalent fractions removed. 0
0, 1, 1, 2, 2, 3, 1, 1, 3, 4, 4, 5, 3, 1, 1, 3, 5, 6, 2, 2, 6, 7, 5, 1, 1, 5, 7, 8, 4, 4, 8, 9, 7, 5, 3, 1, 1, 3, 5, 7, 9, 10, 2, 2, 10, 11, 9, 7, 5, 3, 1, 1, 3, 5, 7, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..55.

CROSSREFS

Sum of numerator and denominator is given by A038567.

Sequence in context: A092779 A286093 A078827 * A130795 A195663 A264010

Adjacent sequences:  A157803 A157804 A157805 * A157807 A157808 A157809

KEYWORD

nonn

AUTHOR

Ron R. King, Mar 07 2009

STATUS

approved

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Last modified June 24 04:38 EDT 2019. Contains 324318 sequences. (Running on oeis4.)