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 A164842 #3 Mar 30 2012 17:28:25 %S A164842 101,1001,10001,50001,100001,100002,100005,100011,100101,100549, %T A164842 101001,110001,114499,200001,316261,375501,500001,1000001,1000002, %U A164842 1000005,1000011,1000101,1001001,1010001,1100001,2000001,5000001,5000002 %N A164842 Numbers n with property that average digit of n^2 is less than 1. %C A164842 No trailing zeros in n. %C A164842 Other terms < 10^8: %C A164842 5000011,5000101,5001001,5010001,5100001,5500001,6000001,10000001,10000002, %C A164842 10000005,10000006,10000011,10000015,10000051,10000055,10000101,10000105, %C A164842 10000501,10001001,10001005,10005001,10010001,10010005,10050001,10100001, %C A164842 10100005,10500001,11000001,11000005,15000001,17320511,20000001,20000005, %C A164842 44989999,48989999,50000001,50000002,50000011,50000101,50001001,50010001, %C A164842 50100001,51000001,55000001,60000001. %Y A164842 Cf. A164770 (s=2), A164771 (s=1), A164772 (s=8), A164773 (s=7), A164774 (s=5). A164776 (s=4). A164779 (s=6), A164782(s=3), A164841(s<8). %K A164842 base,nonn,less %O A164842 1,1 %A A164842 _Zak Seidov_, Aug 28 2009 %E A164842 Edited by _Charles R Greathouse IV_, Mar 23 2010