OFFSET
1,4
LINKS
Max A. Alekseyev, Computing the Inverses, their Power Sums, and Extrema for Euler's Totient and Other Multiplicative Functions. Journal of Integer Sequences, Vol. 19 (2016), Article 16.5.2.
FORMULA
EXAMPLE
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Donovan Johnson, Dec 19 2008
EXTENSIONS
a(12)-a(21) from Ray Chandler, Dec 28 2008
a(22)-a(24) from Max Alekseyev, Jan 27 2012
STATUS
approved