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 A208568 #12 Oct 19 2020 02:22:10 %S A208568 1,1,0,1,1,2,2,1,0,1,2,1,0,0,1,1,2,0,1,0,0,0,0,0,1,1 %N A208568 Number of holes in n-th lower case letter of English alphabet (in hand-written form using a cursive script). %H A208568 <a href="/index/Ho#holes">Index entries for sequences related to holes in letters</a> %e A208568 a has one hole, b has one hole, c has no holes, ... (though the sequence refers to hand-written letters, not these printed letters). %Y A208568 Cf. A185374, A064530, A064692. %K A208568 nonn,base,fini,full %O A208568 1,6 %A A208568 Alex Bellos and _N. J. A. Sloane_, Feb 28 2012, corrected Mar 01 2012