OFFSET
1,2
COMMENTS
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, PARI program
EXAMPLE
The first terms of A003990 are: 1, 2, 2, 3, 2, 3, 4, 6, 6, 4, 5, 4, 3, 4, 5, 6, 10. Removing duplicates yields 1, 2, 3, 4, 6, 5, 10.
PROG
(PARI) \\ See Links section.
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Rémy Sigrist, Jul 20 2024
STATUS
approved