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A121701 Lexicographically earliest sequence such that a(m)<>a(n) for all m with m<>n except either for m=2*n or n=2*m. 3
1, 1, 2, 3, 4, 2, 5, 3, 6, 4, 7, 8, 9, 5, 10, 11, 12, 6, 13, 14, 15, 7, 16, 8, 17, 9, 18, 19, 20, 10, 21, 11, 22, 12, 23, 24, 25, 13, 26, 14, 27, 15, 28, 29, 30, 16, 31, 32, 33, 17, 34, 35, 36, 18, 37, 19, 38, 20, 39, 40, 41, 21, 42, 43, 44, 22, 45, 46, 47, 23, 48, 24, 49, 25, 50 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

a(4*n-2) = a(2*n-1): a(A016825(n)) = a(A005408(n));

a(2*A003159(n)) = a(A003159(n));

if a(m)=a(n) with m<n then A035263(m)=1 and A035263(n)=0.

LINKS

Table of n, a(n) for n=1..75.

CROSSREFS

Sequence in context: A302785 A319825 A305829 * A161759 A260643 A300840

Adjacent sequences:  A121698 A121699 A121700 * A121702 A121703 A121704

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Aug 16 2006

STATUS

approved

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Last modified June 14 01:29 EDT 2021. Contains 345016 sequences. (Running on oeis4.)