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 A087411 #8 Mar 20 2015 03:25:10
%S A087411 91,82,73,64,55,46,37,28,19,9,91,8,11,71,26,13,51,44,15,31,62,17,11,
%T A087411 80,18,91,98,20,72,16,22,52,34,24,32,52,26,12,70,27,92,88,29,73,6,31,
%U A087411 53,24,33,33,42,35,13,60,36,93,78,38,73,96,40,54,14,42,34,32,44,14,50,45,94
%N A087411 Multiples of 9 with digits grouped in pairs and leading zeros omitted.
%t A087411 FromDigits /@ Partition[ Flatten[ IntegerDigits[ Table[ 9n, {n, 1, 60}]]], 2] (* _Robert G. Wilson v_ *)
%Y A087411 Cf. A008591, A059805, A087406, A060936, A087407, A087408, A087409, A087075, A087410.
%K A087411 nonn,easy,base
%O A087411 1,1
%A A087411 _N. J. A. Sloane_, Oct 19 2003
%E A087411 More terms from _Ray Chandler_, Oct 20 2003