This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A018019 #14 Sep 08 2022 08:44:44
%S A018019 1,2,6,15,37,91,225,555,1368,3375,8323,20527,50625,124852,307911,
%T A018019 759375,1872780,4618672,11390625,28091697,69280082,170859375,
%U A018019 421375454,1039201232,2562890625,6320631805,15588018474,38443359375,94809477068,233820277107
%N A018019 Powers of cube root of 15 rounded to nearest integer.
%H A018019 Vincenzo Librandi, <a href="/A018019/b018019.txt">Table of n, a(n) for n = 0..200</a>
%t A018019 With[{c=15^(1/3)},Floor[c^Range[0,30]+1/2]] (* _Harvey P. Dale_, Apr 18 2012 *)
%t A018019 Table[Round[15^(n/3)], {n, 0, 40}] (* _Vincenzo Librandi_, Jan 08 2014 *)
%o A018019 (Magma) [Round(15^(n/3)): n in [0..40]]; // _Vincenzo Librandi_, Jan 08 2014
%Y A018019 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).
%K A018019 nonn
%O A018019 0,2
%A A018019 _N. J. A. Sloane_
%E A018019 More terms from _Vincenzo Librandi_, Jan 08 2014