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 A018032 #13 Sep 08 2022 08:44:44
%S A018032 1,3,8,19,51,136,361,964,2571,6859,18303,48839,130321,347749,927934,
%T A018032 2476099,6607227,17630735,47045881,125537307,334983956,893871739,
%U A018032 2385208823,6364695154,16983563041,45318967620,120929207915,322687697779,861060384776
%N A018032 Powers of cube root of 19 rounded up.
%H A018032 Vincenzo Librandi, <a href="/A018032/b018032.txt">Table of n, a(n) for n = 0..200</a>
%t A018032 Table[Ceiling[19^(n/3)], {n, 0, 40}] (* _Vincenzo Librandi_, Jan 10 2014 *)
%t A018032 Ceiling[Surd[19,3]^Range[0,30]] (* _Harvey P. Dale_, Dec 21 2014 *)
%o A018032 (Magma) [Ceiling(19^(n/3)): n in [0..40]]; // _Vincenzo Librandi_, Jan 10 2014
%Y A018032 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), this sequence (k=19), A018035 (k=20), A018038 (k=21), A018041 (k=22), A018044 (k=23), A018047 (k=24).
%K A018032 nonn
%O A018032 0,2
%A A018032 _N. J. A. Sloane_
%E A018032 More terms from _Vincenzo Librandi_, Jan 10 2014