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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