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 A190217 #6 Mar 30 2012 19:00:25 %S A190217 1,2,3,4,5,6,7,8,9,11,22,33,44,55,66,77,88,99,1111111111111111111, %T A190217 2222222222222222222,3333333333333333333,4444444444444444444, %U A190217 5555555555555555555,6666666666666666666,7777777777777777777,8888888888888888888,9999999999999999999 %N A190217 Numbers all of whose divisors are repdigit numbers. %C A190217 Subset of A010785, A190220 and A190221. %e A190217 Number 99 is in sequence because all divisors of 99 (1, 3, 9, 11, 33, 99) are repdigit numbers. %K A190217 nonn,base %O A190217 1,2 %A A190217 _Jaroslav Krizek_, May 06 2011