OFFSET
1
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..65537
FORMULA
a(n) = sign(A295301(n)) = sign(n - phi(sigma(n))).
PROG
(PARI) A295303(n) = sign(n - eulerphi(sigma(n)));
CROSSREFS
KEYWORD
sign
AUTHOR
Antti Karttunen, Nov 21 2017
STATUS
approved