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 A004639 #21 Aug 01 2024 23:15:36
%S A004639 1,8,30,71,148,260,421,628,1000,1331,1738,2330,3011,3678,4560,5551,
%T A004639 6658,8000,10361,11868,13630,15541,17618,20860,23381,26088,30000,
%U A004639 33101,36408,41030,44771,48848,54260,58821,64728,71000,76431,83238,100330,106711,114478
%N A004639 Cubes written in base 9.
%H A004639 G. C. Greubel, <a href="/A004639/b004639.txt">Table of n, a(n) for n = 1..5000</a>
%F A004639 a(n) = A007095(n^3) = A007095(A000578(n)). - _Vincenzo Librandi_, Oct 15 2015
%t A004639 Table[FromDigits[IntegerDigits[n^3, 9]], {n, 45}] (* _Vincenzo Librandi_, Oct 15 2015 *)
%o A004639 (Magma) [Seqint(Intseq(n^3, 9)): n in [1..45]]; // _Vincenzo Librandi_, Oct 15 2015
%o A004639 (PARI) for(n=1,40, print1(fromdigits(digits(n^3, 9)), ", ")) \\ _G. C. Greubel_, Sep 10 2018
%Y A004639 Cf. A000578, A007095.
%K A004639 nonn,base
%O A004639 1,2
%A A004639 _N. J. A. Sloane_
%E A004639 Changed offset and more terms from _Vincenzo Librandi_, Oct 15 2015