OFFSET
1,2
COMMENTS
LINKS
Rémy Sigrist, Colored scatterplot of the first 100000 terms (where the color is function of A007814(a(n)))
EXAMPLE
The first terms, alongside their 2-adic and 3-adic valuations, are:
n a(n) v2 v3
-- ---- -- --
1 1 0 0
2 3 0 1
3 2 1 0
4 5 0 0
5 7 0 0
6 9 0 2
7 4 2 0
8 11 0 0
9 13 0 0
10 15 0 1
11 6 1 1
12 10 1 0
13 17 0 0
14 19 0 0
15 21 0 1
16 14 1 0
17 23 0 0
18 25 0 0
19 27 0 3
20 8 3 0
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, May 20 2018
STATUS
approved