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 A200658 #15 May 10 2025 02:27:22 %S A200658 52488,15336,-20088,219375,-293625,981504,-1285632,-474552,1367631 %N A200658 a(n) = A200656(n)^3 - A200657(n)^2. %C A200658 For x values see A200656. %C A200658 For y values see A200657. %C A200658 Definition: Secondary terms occurred when existed such integer k that A200656 is divisible by k^2 and A200657 is divisible by k^3 and A200658 is divisible by k^6. %C A200658 Terms free of such k are primary terms. %C A200658 Secondary terms are: a(6)=a(2)*2^6, a(7)=a(3)*2^6. %C A200658 A200218 is subset of this sequence. %Y A200658 Cf. A200218, A200656, A200657. %K A200658 sign,more %O A200658 1,1 %A A200658 _Artur Jasinski_, Nov 20 2011