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 A018011 #10 Sep 08 2022 08:44:44
%S A018011 1,3,6,12,28,63,144,330,755,1728,3957,9058,20736,47474,108688,248832,
%T A018011 569684,1304249,2985984,6836197,15650984,35831808,82034362,187811805,
%U A018011 429981696,984412343,2253741659,5159780352,11812948115,27044899908,61917364224
%N A018011 Powers of cube root of 12 rounded up.
%H A018011 Vincenzo Librandi, <a href="/A018011/b018011.txt">Table of n, a(n) for n = 0..200</a>
%t A018011 Table[Ceiling[12^(n/3)], {n, 0, 40}] (* _Vincenzo Librandi_, Jan 09 2014 *)
%o A018011 (Magma) [Ceiling(12^(n/3)): n in [0..40]]; // _Vincenzo Librandi_, Jan 09 2014
%Y A018011 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), this sequence (k=12), A018014 (k=13), A018017 (k=14), A018020 (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).
%K A018011 nonn
%O A018011 0,2
%A A018011 _N. J. A. Sloane_
%E A018011 More terms from _Vincenzo Librandi_, Jan 09 2014