Poincaré series [or Poincare series] P(T_{4,2}; x).

Terms

a(0) =1a(1) =4a(2) =14a(3) =42a(4) =113a(5) =278a(6) =646a(7) =1418a(8) =2979a(9) =6018a(10) =11752a(11) =22256a(12) =41030a(13) =73784a(14) =129748a(15) =223498a(16) =377753a(17) =627314a(18) =1024882a(19) =1649026a(20) =2615695a(21) =4093814a(22) =6327054a(23) =9663096a(24) =14593624a(25) =21807176a(26) =32260234a(27) =47270090a(28) =68637409a(29) =98804814