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 A018047 #10 Sep 08 2022 08:44:44
%S A018047 1,3,9,24,70,200,576,1662,4793,13824,39876,115021,331776,957008,
%T A018047 2760488,7962624,22968183,66251702,191102976,551236371,1590040836,
%U A018047 4586471424,13229672881,38160980056,110075314176,317512149144,915863521340,2641807540224,7620291579446
%N A018047 Powers of cube root of 24 rounded up.
%t A018047 Table[Ceiling[24^(n/3)], {n, 0, 40}] (* _Vincenzo Librandi_, Jan 10 2014 *)
%o A018047 (Magma) [Ceiling(24^(n/3)): n in [0..40]]; // _Vincenzo Librandi_, Jan 10 2014
%Y A018047 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), 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), this sequence (k=24).
%K A018047 nonn
%O A018047 0,2
%A A018047 _N. J. A. Sloane_
%E A018047 More terms from _Vincenzo Librandi_, Jan 10 2014