Cogrowth sequence of the 12-element group A4 = <S,T | S^3, T^2, (ST)^3>.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =5a(6) =4a(7) =14a(8) =21a(9) =43a(10) =91a(11) =165a(12) =354a(13) =676a(14) =1373a(15) =2741a(16) =5445a(17) =10965a(18) =21808a(19) =43738a(20) =87381a(21) =174735a(22) =349647a(23) =698901a(24) =1398318a(25) =2796080a(26) =5592445a(27) =11185081a(28) =22369145a(29) =44740069