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 A089599 #18 Jan 30 2018 18:57:36 %S A089599 1,0,1,1,2,2,5,4,8,9,13,15,23,24,35,40,52,60,79,87,112,127,155,177, %T A089599 216,240,290,326,382,430,503,557,648,720,822,914,1041,1144,1298,1428, %U A089599 1600,1760,1967,2146,2392,2609,2882,3142,3463,3752,4127,4468,4882,5282,5760,6202 %N A089599 G.f.: (1+x^5+x^7+x^8+x^10+x^15)/((1-x^2)(1-x^3)(1-x^4)(1-x^6)^2(1-x^9)). %C A089599 Poincaré series [or Poincare series] (or Molien series) for (P[x_0, x_1] ⊗ P[x_0, x_1] ⊗ P[x_0, x_1] )^(S_3). %D A089599 A. Adem and R. J. Milgram, Cohomology of Finite Groups, Springer-Verlag, 2nd. ed., 2004; p. 200. %H A089599 Ray Chandler, <a href="/A089599/b089599.txt">Table of n, a(n) for n = 0..1000</a> %H A089599 <a href="/index/Rec#order_25">Index entries for linear recurrences with constant coefficients</a>, signature (1, 1, 0, 0, -2, 1, -1, 0, 2, -2, 1, 0, 0, 1, -2, 2, 0, -1, 1, -2, 0, 0, 1, 1, -1). %F A089599 G.f.: (1-x+x^5-x^9+x^10)/((1-x)^2*(1-x^2)*(1-x^4)*(1-x^6)*(1-x^9)*(1+x+x^2)). See also the NAME. - _Wolfdieter Lang_, Mar 19 2014 %o A089599 (PARI) Vec((1+x^5+x^7+x^8+x^10+x^15)/((1-x^2)*(1-x^3)*(1-x^4)*(1-x^6)^2*(1-x^9)) + O(x^100)) \\ _Michel Marcus_, Mar 19 2014 %Y A089599 Cf. A082146, A091434, A091726, A091769. %K A089599 nonn %O A089599 0,5 %A A089599 _N. J. A. Sloane_, Dec 31 2003