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 A064529 #7 Oct 18 2020 01:50:12 %S A064529 2,3,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2,2,1,1,1,1,1,1,1,1 %N A064529 Number of connected components remaining when n-th letter of English alphabet is cut from a piece of paper. %H A064529 <a href="/index/Ho#holes">Index entries for sequences related to holes in letters</a> %Y A064529 Equals A064530 + 1. Cf. A064531, A064532. %K A064529 nonn,fini,full %O A064529 1,1 %A A064529 _N. J. A. Sloane_, Oct 07 2001