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 A362123 #17 Nov 15 2023 13:13:49 %S A362123 4,3,3,5,4,4,3,5,5,4,3,6,6,8,8,7,7,9,8,8,6,9,9,11,10,10,9,11,11,10,6, %T A362123 9,9,11,10,10,9,11,11,10,5,8,8,10,9,9,8,10,10,9,5,8,8,10,9,9,8,10,10, %U A362123 9,5,8,8,10,9,9,8,10,10,9,7,10,10,12,11,11,10,12,12,11,6,9,9,11,10,10,9,11,11,10,6,9,9,11,10,10,9,11,11,10,10,16,16,18,17,17,16,18,18,17,16,19,19,21,21,20,20,22,21,21,19 %N A362123 Number of letters in the British English name of n, excluding spaces and hyphens. %H A362123 Michael S. Branicky, <a href="/A362123/b362123.txt">Table of n, a(n) for n = 0..10000</a> %o A362123 (Python) %o A362123 from num2words import num2words %o A362123 def a(n): return sum(1 for c in num2words(n, lang='en_GB') if c.isalpha()) %o A362123 print([a(n) for n in range(121)]) # _Michael S. Branicky_, Apr 21 2023 %Y A362123 Cf. A005589. %K A362123 nonn,word %O A362123 0,1 %A A362123 _N. J. A. Sloane_, Apr 20 2023 %E A362123 More than the usual number of terms are shown in the DATA field to avoid confusion with A005589.