OFFSET
1,1
COMMENTS
Size of invphi(4n) solution-set.
EXAMPLE
4n=48: invphi(48) has 11 solutions: {65,104,105,112,130,140,144,156,168,180,210} The value of the "nops(invphi(4k))" number seems to take any integer except 1.
MAPLE
with(numtheory): [seq(nops(invphi(4*k)), k=1...256)];
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Jan 15 2001
EXTENSIONS
Offset corrected by Sean A. Irvine, Sep 08 2022
STATUS
approved