A132983 a(n) = ceiling(n^(1/3) + n^(1/4)).
2, 3, 3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8
Offset: 1
Keywords
Links
- G. C. Greubel, Table of n, a(n) for n = 1..5000
Programs
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Mathematica
Table[Ceiling[Surd[n,3]+Surd[n,4]],{n,80}] (* Harvey P. Dale, May 07 2014 *) -
PARI
for(n=1, 50, print1(ceil(n^(1/3) + n^(1/4)), ", ")) \\ G. C. Greubel, Sep 28 2017