OFFSET
1,1
COMMENTS
Records occur at n = 1, 2, 12, 18, 108, 216, 8856, ...
Interestingly, a(224) = a(225) = ... = a(441) = 3.
LINKS
Peter Kagey, Table of n, a(n) for n = 1..10000
CROSSREFS
KEYWORD
nonn
AUTHOR
Alec Jones, Mar 18 2020
STATUS
approved