A018023 Powers of cube root of 16 rounded up.

1, 3, 7, 16, 41, 102, 256, 646, 1626, 4096, 10322, 26008, 65536, 165141, 416128, 1048576, 2642246, 6658043, 16777216, 42275936, 106528682, 268435456, 676414964, 1704458901, 4294967296, 10822639410, 27271342416, 68719476736, 173162230555

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Mathematica

With[{c=16^(1/3)}, Ceiling[c^Range[0, 30]]] (* Harvey P. Dale, Oct 09 2012 *)
Table[Ceiling[16^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 09 2014 *)

Prog

(Magma) [Ceiling(16^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 09 2014

Crossrefs

Cf. powers of cube root of k ceiling up: A017981 (k=2), A017984 (k=3), A017987 (k=4), A017990 (k=5), A017993 (k=6), A017996 (k=7), A018002 (k=9), A018005 (k=10), A018008 (k=11), A018011 (k=12), A018014 (k=13), A018017 (k=14), A018020 (k=15), this sequence (k=16), A018026 (k=17), A018029 (k=18), A018032 (k=19), A018035 (k=20), A018038 (k=21), A018041 (k=22), A018044 (k=23), A018047 (k=24).

Sequence in context: A009337 A323776 A036567 * A144977 A058300 A000674

Adjacent sequences: A018020 A018021 A018022 * A018024 A018025 A018026

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 09 2014

Status

approved