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 A161377 #32 Feb 03 2021 23:13:54 %S A161377 3,22,4,21,3,3,20,20,16,14,4,16,4,21,3,18,4,4,4,4,23,23,23,23,23,23, %T A161377 23,23,23,23,21,21,21,21,21,21,21,21,21,21,3,3,3,3,3,3,3,3,3,3,3,3,3, %U A161377 3,3,3,3,3,3,3,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,16 %N A161377 Position of first letter of n in alphabet (in Spanish). %C A161377 The 15th letter in the Spanish alphabet is ñ. - _J. Lowell_, Feb 02 2021 %C A161377 The 27 letters in the Spanish alphabet are ABCDEFGHIJKLMNÑOPQRSTUVWXYZ, abcdefghijklmnñopqrstuvwxyz. - _Omar E. Pol_, Feb 03 2021 %H A161377 Álvar Ibeas, <a href="/A161377/b161377.txt">Table of n, a(n) for n = 0..10000</a> %H A161377 Wikipedia, <a href="https://en.wikipedia.org/wiki/Spanish_orthography#Alphabet_in_Spanish">Spanish orthography</a> %e A161377 0 = Cero begins with 'C' and 'C' is the third letter, hence a(0) = 3. %e A161377 1 = Uno begins with 'U' and 'U' is the 22nd letter in the Spanish alphabet, hence a(1) = 22. %e A161377 2 = Dos begins with 'D' and 'D' is the fourth letter, hence a(2) = 4. %Y A161377 Cf. A005606. %K A161377 nonn,word %O A161377 0,1 %A A161377 _Claudio Meller_, Jun 08 2009 %E A161377 Offset corrected by _Álvar Ibeas_, Sep 18 2020