OFFSET
1,2
COMMENTS
Much like the Hofstadter Q-sequence A005185, it is not known if this sequence is defined for all positive n.
Empirically, this sequence appears to grow approximately like n/2 with a lot of noise.
a(n) exists for n<=10^7.
LINKS
Nathan Fox, Table of n, a(n) for n = 1..10000
MAPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Nathan Fox, May 03 2016
STATUS
approved