OFFSET
1,2
COMMENTS
In other words a(n) is least k such that (j,k) = 1 and rad(i*j*k) is a primorial number (alternatively i*j*k is a term in A055932).
Conjectured to be a permutation of the positive integers with primes in order.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, PARI program
EXAMPLE
PROG
(PARI) \\ See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
David James Sycamore, Jul 11 2024
EXTENSIONS
More terms from Rémy Sigrist, Aug 19 2024
STATUS
approved