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 A119960 #8 Jun 13 2016 09:02:35 %S A119960 1,2,3,6,7,8,10,15,16,24,25,29,34,35,39,40,43,47,48,50,53,57,58,60,63, %T A119960 67,68,70,71,72,73,76,77,78,84,85,89,94,95,99 %N A119960 Positive integers with prime number of characters in their English names, including spaces and hyphens. %C A119960 Differs due to hyphens and spaces from A072685 Positive integers whose English names contain a prime number of letters. Primes with prime number of characters in their English names, including spaces and hyphens, are a subset of this beginning: 2, 3, 7, 29, 43, 47, 53, 67, 71, 73. %F A119960 n such that A052360(n) is prime. n such that A052360(n) is in A000040. %t A119960 Select[Range[99], PrimeQ[ StringLength@ IntegerName[#, "Words"]] &] (* _Giovanni Resta_, Jun 13 2016 *) %Y A119960 Cf. A000040, A052360, A005589, A052362-A052363, A072685. %K A119960 easy,nonn,word %O A119960 1,2 %A A119960 _Jonathan Vos Post_, Aug 02 2006 %E A119960 Missing a(1) and more terms from _Giovanni Resta_, Jun 13 2016