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 A018023 Powers of cube root of 16 rounded up. 21
 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 (list; graph; refs; listen; history; text; internal format)
 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 EXTENSIONS More terms from Vincenzo Librandi, Jan 09 2014 STATUS approved

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Last modified March 19 04:34 EDT 2019. Contains 321311 sequences. (Running on oeis4.)