Poincaré series [or Poincare series] P(T_{6,2}; x).

Terms

a(0) =1a(1) =4a(2) =14a(3) =42a(4) =118a(5) =310a(6) =779a(7) =1876a(8) =4382a(9) =9948a(10) =22057a(11) =47850a(12) =101844a(13) =212946a(14) =438118a(15) =887814a(16) =1773827a(17) =3496850a(18) =6806682a(19) =13089748a(20) =24882962a(21) =46778368a(22) =87005834a(23) =160168440a(24) =291935815a(25) =527013208a(26) =942571346a(27) =1670669524a(28) =2935415726a(29) =5114032028