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 A080517 #10 Aug 22 2025 03:45:20 %S A080517 1,3,8,9,15,19,23,25,29,31,33,36,37,41,44,47,49,52,55,57,60,64,65,68, %T A080517 69,73,76,79,81,84,88,92,96,99,102,106,110,114,117,121,128,131,135, %U A080517 139,143,144,148,151,155,158,162,165,169,172,177,178,185,188,193,196,200,204,207,210,214,217,221,228,231 %N A080517 T is the first, third, eighth, ninth, fifteenth, nineteenth, ... consonant in this sentence. %C A080517 'y' is always a vowel in numeric words. %Y A080517 Cf. Aronson's sequence A005224, A080518-A080520. %K A080517 nonn,easy,word,changed %O A080517 1,2 %A A080517 _Benoit Cloitre_, Mar 21 2003 %E A080517 Corrected and extended by _Don Reble_, Mar 30 2003