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A018020 Powers of cube root of 15 rounded up. 21
1, 3, 7, 15, 37, 92, 225, 555, 1369, 3375, 8324, 20528, 50625, 124852, 307912, 759375, 1872780, 4618673, 11390625, 28091697, 69280083, 170859375, 421375454, 1039201232, 2562890625, 6320631805, 15588018474, 38443359375, 94809477069, 233820277108 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
MATHEMATICA
Table[Ceiling[15^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 09 2014 *)
PROG
(Magma) [Ceiling(15^(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), this sequence (k=15), A018023 (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: A255962 A190571 A317881 * A192472 A147106 A078161
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Jan 09 2014
STATUS
approved

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)