OFFSET
1,2
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = n + floor(n^s), n >= 1; the complement is given by n + floor(n^(1/s)), n >= 2.
EXAMPLE
The first numbers in the joint ranking are
1^r < 2^r < 2^s < 3^r < 4^r < 3^s < 5^r < 6^r < 7^r < 4^s, so that a(n) = (1, 2, 4, 5, 7,...).
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Sep 06 2016
STATUS
approved