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 A086014 #14 Dec 15 2017 17:36:31
%S A086014 0,0,0,0,1,0,1,0,1,0,0,0,0,1,1,0,1,0,0,1,0,0,0,0,1,1,2,0,0,0,0,1,0,0,
%T A086014 1,0,1,1,0,0,1,1,1,0,1,0,1,0,0,0,0,1,0,0,1,0,1,0,1,0,1,0,0,1,1,0,1,0,
%U A086014 1,1,0,0,0,0,1,1,1,0,1,1,1,2,1,1,1,0,1,1,0,0,0,0,1,1,1,0,1,0,1,0,0,0,0,1,1
%N A086014 Number of 6's in decimal expansion of n^2.
%H A086014 G. C. Greubel, <a href="/A086014/b086014.txt">Table of n, a(n) for n = 0..1000</a>
%t A086014 Table[DigitCount[n^2,10,6],{n,0,110}] (* _Harvey P. Dale_, May 24 2014 *)
%o A086014 (PARI) A086014(n)=#select(d->d==6,digits(n^2)) \\ _M. F. Hasler_, Feb 21 2016
%Y A086014 Cf. 0's A086008, 1's A086009, 2's A086010, 3's A086011, 4's A086012, 5's A086013, 7's A086015, 8's A086016, 9's A086017.
%Y A086014 Cf. A269246 for the n^3 analog.
%K A086014 base,nonn
%O A086014 0,27
%A A086014 _Jason Earls_, Jul 07 2003