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 A007995 #20 May 10 2020 14:59:12 %S A007995 5,35,235,1380,6711,26630,89695,266305,716460,1780978,4147915,9144485, %T A007995 19231895,38819255,75566971,142424625,260749275,464984685,809559075, %U A007995 1378889190,2301674475,3771041860,6072576655,9622868805,15021940010 %N A007995 Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group. %C A007995 The series in the Humphries paper has zeros interleaved. %H A007995 S. P. Humphries, <a href="http://www.math.byu.edu/~steve/">Home page</a> %H A007995 S. P. Humphries, <a href="http://dx.doi.org/10.1016/S0166-8641(98)00007-8">Braid groups, infinite Lie algebras of Cartan type and rings of invariants</a>, Topology and its Applications, 95 (3) (1999) pp. 173-205. %F A007995 a(n) = (1/87178291200) [n^14 + 91*n^13 + 3731*n^12 + 91091*n^11 + 1474473*n^10 + 16429413*n^9 + 126387833*n^8 + 659772113*n^7 + 430175746*n^6 - 19046231204*n^5 - 113904491064*n^4 + 733785439296*n^3 + 1856912273280*n^2 - 12048593356800*n + 13512635136000 ]. - _Ralf Stephan_, Jun 11 2005 %F A007995 G.f.: (-45*x^15 +520*x^14 -2705*x^13 +8340*x^12 -16875*x^11 +23430*x^10 -22710*x^9 +15480*x^8 -7695*x^7 +3300*x^6 -1586*x^5 +745*x^4 -235*x^3 +40*x^2 -5*x)/(x-1)^15. - _Mark van Hoeij_, Oct 21 2011 %K A007995 nonn %O A007995 1,1 %A A007995 _Stephen P. Humphries_ %E A007995 More terms from _Ralf Stephan_, Jun 11 2005