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 A014834 #13 Apr 06 2017 14:48:26 %S A014834 1,0,0,0,0,-1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,-1,0,0,0,0,1,0,0,0,0,0,0,0, %T A014834 0,0,-1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,-1,0,0,0,0,0, %U A014834 0,0,0,0,1,0,0,0,0,-1,0,0,0,0,1 %N A014834 Inverse of 825th cyclotomic polynomial. %C A014834 Periodic with period length 825. - _Ray Chandler_, Apr 06 2017 %H A014834 Ray Chandler, <a href="/A014834/b014834.txt">Table of n, a(n) for n = 0..1000</a> %H A014834 <a href="/index/Rec#order_400">Index entries for linear recurrences with constant coefficients</a>, order 400. %H A014834 <a href="/index/Pol#poly_cyclo_inv">Index to sequences related to inverse of cyclotomic polynomials</a> %p A014834 with(numtheory,cyclotomic); c := n->series(1/cyclotomic(n,x),x,80); %o A014834 (PARI) Vec(1/polcyclo(825)+O(x^99)) \\ _Charles R Greathouse IV_, Mar 24 2014 %K A014834 sign %O A014834 0,1 %A A014834 _Simon Plouffe_