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

0,2

Links

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

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 *)

Prog

(Magma) [Round(15^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 08 2014

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).

Sequence in context: A291414 A098790 A300344 * A331347 A306463 A034518

Adjacent sequences: A018016 A018017 A018018 * A018020 A018021 A018022

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 08 2014

Status

approved