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 A048326 #6 Oct 13 2019 16:37:34 %S A048326 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,16,32,48,64,80,96,112,128,144,160, %T A048326 176,192,208,224,240,241,242,243,244,245,246,247,248,249,250,251,252, %U A048326 253,254,480,481,482,483,484,485,486,487,488,489,490,491,492,493,494 %N A048326 Numbers whose base-15 expansions, read from left to right, have run lengths that strictly decrease. %Y A048326 Cf. A037013, A043704, A043718, A044826, A044964. %K A048326 nonn,base %O A048326 0,3 %A A048326 _Patrick De Geest_, Feb 15 1999