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 A028911 #9 Jul 08 2025 18:55:27 %S A028911 2,3,5,7,11,31,31,32,41,43,53,61,71,71,73,73,74,76,83,91,92,95,97,97, %T A028911 98,110,211,310,311,311,311,322,331,331,332,410,421,421,431,433,443, %U A028911 511,521,521,530,532,533,541,610,631,631,631,632,641,641,643,643,653 %N A028911 Sort digits of primes into descending order (A028906) then sort this sequence into ascending order. %t A028911 Take[Sort[FromDigits[Reverse[Sort[IntegerDigits[#]]]]&/@Prime[Range[200]]],60] (* _Harvey P. Dale_, Mar 26 2013 *) %K A028911 nonn,base,easy %O A028911 0,1 %A A028911 _N. J. A. Sloane_ %E A028911 More terms from _Erich Friedman_.