Molien series for 3-dimensional group [2+,n] = 2*(n/2).

Terms

a(0) =1a(1) =0a(2) =2a(3) =0a(4) =3a(5) =0a(6) =4a(7) =0a(8) =5a(9) =1a(10) =6a(11) =2a(12) =7a(13) =3a(14) =8a(15) =4a(16) =10a(17) =5a(18) =12a(19) =6a(20) =14a(21) =7a(22) =16a(23) =8a(24) =18a(25) =10a(26) =20a(27) =12a(28) =22a(29) =14