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

1,1

Links

G. C. Greubel, Table of n, a(n) for n = 1..5000

Mathematica

Table[Ceiling[Surd[n, 3]+Surd[n, 4]], {n, 80}] (* Harvey P. Dale, May 07 2014 *)

Prog

(PARI) for(n=1, 50, print1(ceil(n^(1/3) + n^(1/4)), ", ")) \\ G. C. Greubel, Sep 28 2017

Crossrefs

Cf. A000196, A003059, A134914, A134915, A134916.

Sequence in context: A205324 A359512 A213253 * A348182 A029133 A255402

Adjacent sequences: A132980 A132981 A132982 * A132984 A132985 A132986

Keyword

nonn

Author

Mohammad K. Azarian, Nov 18 2007

Status

approved