A132913 a(n) = ceiling(sqrt(n) + n^(1/3)).

2, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13

Offset

1,1

Links

Table of n, a(n) for n=1..66.

Mathematica

Table[Ceiling[Sqrt[n]+Surd[n, 3]], {n, 70}] (* Harvey P. Dale, Jul 31 2018 *)

Crossrefs

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

Sequence in context: A194817 A211675 A239683 * A278814 A003160 A060740

Adjacent sequences: A132910 A132911 A132912 * A132914 A132915 A132916

Keyword

nonn

Author

Mohammad K. Azarian, Nov 18 2007

Status

approved