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A083929 Inverse function of N -> N injection A083930. 8
0, 0, 0, 0, 0, 0, 0, 1, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 3, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,50
COMMENTS
a(0)=0 because A083930(0)=0, but a(n) = 0 also for those n which do not occur as values of A083930. All positive natural numbers occur here once.
It appears that A071661(n) = A083929(A071663(A083930(n))) and A071662 = A083929(A071664(A083930(n))).
LINKS
FORMULA
a(n) = A083927(A083925(n)).
CROSSREFS
a(A080930(n)) = n for all n. Cf. A083925-A083928, A083935.
Sequence in context: A355860 A104261 A028702 * A182660 A286100 A359431
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 13 2003
STATUS
approved

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Last modified April 16 04:38 EDT 2024. Contains 371696 sequences. (Running on oeis4.)