OFFSET
0,3
COMMENTS
Apart from zero, each term occurs at most once. 35 is the smallest positive integer not present in this sequence.
LINKS
Antti Karttunen, Table of n, a(n) for n = 0..8192
FORMULA
a(n) = maximal k such that A234742(k) = n, and 0 if no such k exists.
For all n, a(n) <= n.
PROG
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 31 2014
STATUS
approved