OFFSET
1,2
COMMENTS
This sequence is a variant of A336215.
Will every integer appear in this sequence?
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..5000
Rémy Sigrist, C++ program for A336268
EXAMPLE
For n = 1:
- we can choose a(1) = 1.
For n = 2:
- we can choose a(2) = 2,
- consequently: a(4) = 2.
- For n = 3:
- we can choose a(3) = 3,
- consequently: a(6) = a(9) = 3.
For n = 5:
- a(5) cannot be equal to 4 as a(9) = 3,
- we can choose a(5) = 5,
- consequently: a(10) = a(15) = a(20) = a(<25) = 5.
PROG
(C++) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Jul 15 2020
STATUS
approved