OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..512
EXAMPLE
anti-phi(2) = anti-phi(3) = 1.
anti-phi(8) = anti-phi(9) = 4.
anti-phi(14) = anti-phi(15) = 7. Etc.
MAPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Paolo P. Lava, Aug 07 2014
STATUS
approved