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 A209924 #10 Jul 28 2024 12:46:53
%S A209924 10,1,14,21,1,18,25,6,5,2,18,21,1,18,25,13,1,18,3,8,1,16,18,9,12,13,1,
%T A209924 25,10,21,14,5,10,21,12,25,1,21,7,21,19,20,19,5,16,20,5,13,2,5,18,15,
%U A209924 3,20,15,2,5,18,14,15,22,5,13,2,5,18,4,5,3,5,13,2,5,18
%N A209924 Concatenation of the months' names spelled in English, with 1=A, 2=B,..., 26=Z.
%t A209924 LetterNumber/@Table[DateString[{2024,m,1},"MonthName"],{m,12}]//Flatten (* _Harvey P. Dale_, Jul 28 2024 *)
%o A209924 (PARI) Vec( Vecsmall( "JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember" ))%32
%Y A209924 Cf. A209926 (same for French), A209927 (same for German).
%Y A209924 Cf. A031139, A049004, A033986, A089746, A049005, A069195, A103742, A134456, A161376.
%K A209924 nonn,fini,full
%O A209924 1,1
%A A209924 _M. F. Hasler_, Mar 15 2012