OFFSET
1,2
COMMENTS
This sequence is infinite as we can always extend it with a repunit not yet used.
All terms are zeroless.
113 is the first zeroless number that cannot appear in this sequence.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, Colored scatterplot of the first 100000 terms (where the color is function of the previous term mod 100)
Rémy Sigrist, PARI program for A329811
Rémy Sigrist, C# program for A329811
EXAMPLE
The first terms, alongside the corresponding (x, y, z), are:
n a(n) x y z
-- ---- - - -
1 1 1 2 3
2 2 2 3 5
3 3 3 5 4
4 5 5 4 9
5 4 4 9 1
6 9 9 1 1
7 11 1 1 1
1 1 2
8 12 1 2 1
2 1 3
9 13 1 3 1
3 1 4
10 14 1 4 1
4 1 5
11 15 1 5 6
5 6 1
PROG
(PARI) See Links section.
(C#) See Links section.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Eric Angelini and Rémy Sigrist, Nov 21 2019
STATUS
approved