OFFSET
1,3
COMMENTS
The sequence starts with a(1)=0. It is then always extended with the smallest integer not yet present and not leading to a contradiction (which would mean producing a value of k already seen).
LINKS
Eric Angelini, Table of n, a(n) for n = 1..1011
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Eric Angelini and Jean-Marc Falcoz Jun 02 2016
STATUS
approved