OFFSET
1,4
COMMENTS
This is not multiplicative. The first point where a(m*n) = a(m)*a(n) does not hold for coprime m and n is 108 = 4*27, where a(108) = 27, although a(4) = 6 and a(27) = 9. See A344702.
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..10404
Antti Karttunen, Data supplement: n, a(n) computed for n = 1..65537
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 26 2021
STATUS
approved