OFFSET
1,3
COMMENTS
If m belongs to this sequence, then the number obtained by removing the leading digit from the expansion of m in primary base also belongs to this sequence.
So the terms of the sequence can be mapped on a tree with root 0 (see illustration in Links section).
Is this sequence infinite?
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..1000
Rémy Sigrist, Illustration of the terms < 2*3*5*7*11
Rémy Sigrist, PARI program for A343405
EXAMPLE
A343404(2099) = 2099, so 2099 belongs to this sequence.
PROG
(PARI) \\ See Links section.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Apr 14 2021
STATUS
approved