OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
MATHEMATICA
Table[Round[12^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 08 2014 *)
PROG
(Magma) [Round(12^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 08 2014
(Python)
from sympy import integer_nthroot
def A018010(n): return -integer_nthroot(m:=3**n<<(n<<1), 3)[0]+integer_nthroot(m<<3, 3)[0] # Chai Wah Wu, Jun 18 2024
CROSSREFS
Cf. powers of cube root of k rounded up: A017980 (k=2), A017983 (k=3), A017986 (k=4), A017989 (k=5), A017992 (k=6), A017995 (k=7), A018001 (k=9), A018004 (k=10), A018007 (k=11), this sequence (k=12), A018013 (k=13), A018016 (k=14), A018019 (k=15), A018022 (k=16), A018025 (k=17), A018028 (k=18), A018031 (k=19), A018034 (k=20), A018037 (k=21), A018040 (k=22), A018043 (k=23), A018046 (k=24).
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 08 2014
STATUS
approved