OFFSET
1,2
COMMENTS
For any k > 0, k appears A000010(k) times.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, Scatterplot of (n, frac(n/a(n))) for n = 1..50000
EXAMPLE
The first terms, alongside the fractional part of n/a(n), are:
n a(n) frac(n/a(n))
-- ---- ------------
1 1 0
2 3 2/3
3 2 1/2
4 3 1/3
5 4 1/4
6 5 1/5
7 4 3/4
8 5 3/5
9 5 4/5
10 7 3/7
PROG
(PARI) ff = []; for (n=1, 72, for (v=1, oo, if (!setsearch(ff, f=frac(n/v)), print1 (v ", "); ff=setunion(ff, [f]); break)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Jul 01 2020
STATUS
approved