A018019 Powers of cube root of 15 rounded to nearest integer.
1, 2, 6, 15, 37, 91, 225, 555, 1368, 3375, 8323, 20527, 50625, 124852, 307911, 759375, 1872780, 4618672, 11390625, 28091697, 69280082, 170859375, 421375454, 1039201232, 2562890625, 6320631805, 15588018474, 38443359375, 94809477068, 233820277107
Offset: 0
Keywords
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..200
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), A018010 (k=12), A018013 (k=13), A018016 (k=14), this sequence (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).
Programs
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Magma
[Round(15^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 08 2014
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Mathematica
With[{c=15^(1/3)},Floor[c^Range[0,30]+1/2]] (* Harvey P. Dale, Apr 18 2012 *) Table[Round[15^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 08 2014 *)
Extensions
More terms from Vincenzo Librandi, Jan 08 2014