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 A098733 #4 Mar 31 2012 14:11:36
%S A098733 1,4,9,16,25,36,49,64,81,10,0,12,13,14,30,16,51,18,76,20,105,22,138,
%T A098733 24,175,26,216,28,261,60,0,64,33,68,70,72,111,76,156,80,205,84,258,88,
%U A098733 315,92,376,96,441,150,0,156,53,162,110,168,171,174,236,180,305,186,378,192
%N A098733 Consider the sequence {b(n), n >= 1} of digits of the natural (or counting) numbers: 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0... (A007376); a(n) = n*b(n).
%Y A098733 Cf. A098727, etc.
%K A098733 base,easy,nonn
%O A098733 1,2
%A A098733 _Alexandre Wajnberg_, Sep 30 2004
%E A098733 More terms from _Joshua Zucker_, May 18 2006