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 A153062 #14 Feb 07 2017 16:33:35
%S A153062 1,0,-4,7,33,1064,1132060,1281559843551,1642395632602463596289537,
%T A153062 2697463413991646582332856337058890220473935674288,
%U A153062 7276308869823469318922107258255539214217660183827400648026742290333726278585952350082821224306844
%N A153062 a(0)=1, a(n)=a(n-1)^2-n^2.
%H A153062 Indranil Ghosh, <a href="/A153062/b153062.txt">Table of n, a(n) for n = 0..13</a>
%H A153062 <a href="/index/Aa#AHSL">Index entries for sequences of form a(n+1)=a(n)^2 + ...</a>
%F A153062 a(n) ~ c^(2^n), where c = 1.24334516566159378905145559484975509773481252881469517052010008004602693351819... . - _Vaclav Kotesovec_, Dec 18 2014
%t A153062 a=1;lst={};Do[a=a^2-n^2;AppendTo[lst,a],{n,0,12}];lst
%t A153062 RecurrenceTable[{a[0]==1, a[n]==a[n-1]^2-n^2}, a, {n, 0, 10}] (* _Vaclav Kotesovec_, Dec 18 2014 *)
%Y A153062 Cf. A153058, A153059, A086851, A153060, A098152, A028300, A153061
%K A153062 sign
%O A153062 0,3
%A A153062 _Vladimir Joseph Stephan Orlovsky_, Dec 17 2008