OFFSET
1,2
EXAMPLE
a(2) = 2 because we have 1/2 = 1/4 + 1/4 = 1/3 + 1/6.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Ilya Gutkovskiy, Mar 07 2021
EXTENSIONS
a(6) from Jud McCranie, Sep 02 2021
STATUS
approved