login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A134914
a(n) = ceiling(n^(1/3)).
16
1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
OFFSET
1,2
LINKS
MAPLE
A134914:=n->ceil(n^(1/3)): seq(A134914(n), n=1..50); # Wesley Ivan Hurt, Jul 24 2014
MATHEMATICA
Table[Ceiling[n^(1/3)], {n, 80}] (* Vincenzo Librandi, Feb 18 2013 *)
PROG
(Magma) [Ceiling(n^(1/3)): n in [1..80]]; // Vincenzo Librandi, Feb 18 2013
(PARI) a(n)=ceil(n^(1/3)) \\ Felix Fröhlich, Jul 24 2014
(Sage) [ceil(n^(1/3)) for n in range(1, 106)] # Stefano Spezia, Aug 17 2024
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Mohammad K. Azarian, Nov 17 2007
STATUS
approved