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 A234605 #22 Mar 07 2025 07:51:03
%S A234605 0,1000,1331000,1003303631331000,
%T A234605 1000000003003300003006603631003303631331000
%N A234605 a(n+1) is next smallest cube ending with a(n), initial term is 0.
%C A234605 a(6) is too large to include (contains 124 digits).
%F A234605 For n>1, a(n) = 1000*A050646(n-1) = 1000*A050647(n-1)^3.
%F A234605 a(n) = (Sum_{i=0..n-1} 10^((3^i+1)/2))^3. - _Max Alekseyev_, Jan 07 2015
%t A234605 a[n_]:=(Sum[10^((3^i+1)/2),{i,0,n-1}])^3; Array[a,5,0] (* _Stefano Spezia_, Mar 07 2025 *)
%Y A234605 Cf. A050646, A050647, A050648, A050650.
%K A234605 nonn,base
%O A234605 1,2
%A A234605 _Derek Orr_, Dec 28 2013