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 A219242 #9 Mar 11 2020 03:50:26 %S A219242 7,5,3,1,11,1,1,1,1,3,0,2,5,3,3,2,0,9,2,3,6,1,0,0,4,0 %N A219242 Distribution of letters in the name of all months of the year (English). %C A219242 Each of the 26 letters of the (English) alphabet, encoded via a->1, b->2, ... , z->26, appears a(n) times in the string of all the (English) names of the twelve months of the year. The letters are taken case insensitive. %F A219242 a(n) = number of times the letter with standard code n (for the code see a comment above), appears in all the twelve English names for the months of the year. %e A219242 a(1) = 7 because the first letter 'a' (or 'A') of the English alphabet appears in 'January' twice, in 'February' once, in 'March' once, in 'April' once, in 'May' once and once in 'August'. %e A219242 a(5) = 11 = 0 + 1 + 0 + 0 + 0 + 1 + 0 + 0 + 3 + 1 + 2 + 3. %e A219242 a(11) = 0 because there is no 'k' or 'K' in the name of the months in English. %Y A219242 Cf. A219241 (analog for days of the week). %K A219242 nonn,word,fini,full %O A219242 1,1 %A A219242 _Wolfdieter Lang_, Dec 14 2012