A085200 - OEIS

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A085200

Inverse function of N -> N injection A071155.

0, 1, 0, 2, 0, 3, 0, 0, 0, 4, 0, 6, 0, 0, 0, 5, 0, 7, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 14, 0, 0, 0, 11, 0, 16, 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 15, 0, 0, 0, 12, 0, 17, 0, 0, 0, 0, 0, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 18, 0, 0, 0, 0, 0, 21, 0, 0, 0

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

COMMENTS

a(0)=0 because A071155(0)=0, but a(n) = 0 also for those n which do not occur as values of A071155. All positive natural numbers occur here once.

LINKS

Table of n, a(n) for n=0..98.

CROSSREFS

a(A071155(n)) = n for all n. Cf. A080300.

Sequence in context: A114511 A085199 A338504 * A080024 A378998 A348223

Adjacent sequences: A085197 A085198 A085199 * A085201 A085202 A085203

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jun 23 2003

STATUS

approved