A126013 - OEIS

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A126013

Inverse function of N->N injection A126011.

0, 1, 2, 3, 4, 0, 5, 0, 0, 6, 0, 0, 7, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 10, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 16, 0, 0

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OFFSET

0,3

COMMENTS

a(0)=0 because A126011(0)=0, but a(n) = 0 also for those n which do not occur as values of A126011. All positive natural numbers occur here once.

LINKS

Table of n, a(n) for n=0..99.

A. Karttunen, Scheme-program for computing this sequence.

CROSSREFS

a(A126011(n)) = n for all n.

Sequence in context: A203571 A199511 A049279 * A119974 A195828 A322981

Adjacent sequences: A126010 A126011 A126012 * A126014 A126015 A126016

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 18 2006

STATUS

approved