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 A216065 #7 Sep 17 2012 21:11:54 %S A216065 35864,19590,17932,14103,9702,10061,8892,9795,3,6889,8069,8742,6448, %T A216065 6553,8966,4594,6800,6670,3,4869,5061,5635,6001,3784,6450,6530,4631, %U A216065 4930,3,4777,4947,6889,4902,5220,4851,4276,3281,4541,3,3679,5302,5279,5271,3317,4296,4331,4930,4921 %N A216065 a(n) is the conjectured highest power of n which has no four identical digits in succession. %Y A216065 Cf. A216063, A216064. %K A216065 nonn,base %O A216065 2,1 %A A216065 _V. Raman_, Sep 01 2012