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 A164838 #16 Jun 30 2023 10:27:08 %S A164838 4,4,4,5,3,7,9,9,13,14,11,13,12,13,14,13,14,11,13,13,14,15,13,14,15, %T A164838 10,11,12,12,14,21,18,20,20,21,19,21,19,20,21,22,19,20,21,22,22,14,24, %U A164838 25,25,23,24,23,23,23,24,24,26,23,26,23 %N A164838 Number of letters in n-th prime (in Dutch). %C A164838 The 'ij' in 'vijf' (five) has been counted as two letters here, as in A090589. %F A164838 a(n) = A090589(prime(n)). - _Michel Marcus_, Sep 05 2013 %e A164838 a(1) = 4 because the first prime is 2, and it has in the Dutch language (twee) 4 letters. %Y A164838 Cf. A090589. %K A164838 nonn,word,more %O A164838 1,1 %A A164838 _Ivan Panchenko_, Aug 28 2009 %E A164838 a(21)-a(25) from _Charles R Greathouse IV_, Aug 26 2017 %E A164838 a(26)-a(60) from _J.W.L. (Jan) Eerland_, Jun 27 2023