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 A051828 #4 Jun 11 2014 17:24:23
%S A051828 1,24,252,2788,31923,352105,3700992,37619035,375300388,3721757919,
%T A051828 37050089673,372206961122,3774238125518,38503409891419,
%U A051828 393429821383490,4011462863576801
%N A051828 Number of numbers below 10^n with nonzero multiplicative digital root 8.
%D A051828 William Mayne, sci.math, Jun 15 1991
%F A051828 # { i : 10^(n-1) < i < 10^n and A051802(i)=8 }
%Y A051828 Cf. A051802, A051810, A051819.
%K A051828 nonn,base,hard
%O A051828 1,2
%A A051828 _Dan Hoey_, Dec 09 1999