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 A090589 #14 Jan 12 2025 14:55:35 %S A090589 3,3,4,4,4,4,3,5,4,5,4,3,6,7,8,8,7,9,8,9,7,12,13,13,13,13,12,14,13,14, %T A090589 6,11,12,12,12,12,11,13,12,13,7,12,13,13,13,13,12,14,13,14,7,12,13,13, %U A090589 13,13,12,14,13,14,6,11,12,12,12,12,11,13,12,13,8,13,14,14,14,14,13,15,14,15,7,12,13,13,13,13,12,14,13,14,8,13,14,14,14,14,13,15,14,15,7 %N A090589 Number of letters in n (in Dutch) counting 'ij' as two letters. %C A090589 The 'ij' in 'vijf' has been counted as two letters here. Counting it as one or two letters are both common in Dutch. %H A090589 Charles R Greathouse IV, <a href="/A090589/a090589.txt">Table of n, a(n) for n=0..100, annotated with names</a>. %H A090589 <a href="/index/Lc#letters">Index entries for sequences related to number of letters in n</a> %Y A090589 Cf. A007485 gives the sequence when the 'ij' is considered as one letter. %K A090589 nonn,word %O A090589 0,1 %A A090589 _André Engels_, Dec 03 2003 %E A090589 a(0) and a(79)-a(100) from _Charles R Greathouse IV_, Aug 26 2017