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 A045827 #6 Mar 08 2020 03:24:31 %S A045827 0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,2,0,1,0,0,0,0,0,2,0,0,0,3,0,0,0,0,0,2, %T A045827 0,2,0,0,0,4,0,1,0,0,0,0,0,2,0,0,0,4,0,0,0,0,0,4,0,1,0,0,0,6,0,2,0,0, %U A045827 0,0,0,2 %N A045827 a(n) = A005872(n)/6. %K A045827 nonn %O A045827 0,16 %A A045827 _N. J. A. Sloane_