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 A120764 #9 Jun 19 2014 16:40:23
%S A120764 2,6,8,11,13,19,20,27,28,31,33,37,39,49,50,52,54,61,63,65,68,70,70,74,
%T A120764 74,80,81,87,88,93,94,96,96,99,102,108,112,117,118,121,122
%N A120764 Number of terms of A007632 less than or equal to 10^n.
%C A120764 A007632: Palindromic in bases 2 and 10.
%e A120764 a(4)=13 because {0, 1, 3, 5, 7, 9, 33, 99, 313, 585, 717, 7447, 9009} are all the terms of A007632 less than 10^4.
%t A120764 lst = { (* the list of terms from A007632 *) }; Table[ Length@ Select[lst, # <= 10^n &], {n, 0, 33}]
%Y A120764 Cf. A007632.
%K A120764 more,nonn,base
%O A120764 0,1
%A A120764 Charlton Harrison (charlton(AT)bach.dynet.com) and _Robert G. Wilson v_, Jul 03 2006
%E A120764 a(34) - a(40) from _Robert G. Wilson v_, Jun 19 2014