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 A083198 #9 Mar 11 2015 11:01:52 %S A083198 1,1,1,2,3,5,7,11,16,24,36,54,80,121,181,271,407,610,915,1372,2058, %T A083198 3088,4631,6947,10420,15630,23446,35169,52753,79129,118693,178039, %U A083198 267059,400589,600883,901324,1351986,2027979,3041968 %N A083198 a(n) = A061419(n) - A002379(n). %C A083198 lim (a(n) * (2/3)^n) = 2/3 * A083286 - 1. %o A083198 (PARI) p=1; for(n=2, 100, p=p+ceil(p/2); print1(p-floor((3/2)^n)", ")) %K A083198 nonn,easy %O A083198 5,4 %A A083198 _Ralf Stephan_, Jun 01 2003