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A075176 Inverse function of N -> N injection A075175. 4
1, 2, 3, 6, 0, 4, 0, 12, 5, 10, 15, 30, 0, 20, 0, 60, 0, 0, 9, 18, 0, 0, 0, 36, 0, 0, 45, 90, 0, 0, 0, 180, 0, 0, 0, 0, 0, 8, 0, 24, 0, 0, 0, 0, 0, 40, 0, 120, 0, 0, 0, 0, 0, 0, 0, 72, 0, 0, 0, 0, 0, 0, 0, 360, 7, 14, 21, 42, 0, 28, 0, 84, 35, 70, 105, 210, 0, 140, 0, 420, 0, 0, 63, 126, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

a(n) = 0 for those n which do not occur as the values of A075175. All positive natural numbers occur here once.

LINKS

Table of n, a(n) for n=0..85.

CROSSREFS

a(A075175(n)) = n for all n >= 1. Differs from A075174 for first time at a(18) = 9, while A075174(18) = 0.

Sequence in context: A078682 A331205 A075174 * A134972 A078890 A021813

Adjacent sequences:  A075173 A075174 A075175 * A075177 A075178 A075179

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 13 2002

STATUS

approved

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Last modified August 1 00:13 EDT 2021. Contains 346377 sequences. (Running on oeis4.)