Molien series for 3-D group X1.

Terms

a(0) =1a(1) =1a(2) =5a(3) =10a(4) =24a(5) =42a(6) =83a(7) =132a(8) =222a(9) =335a(10) =511a(11) =728a(12) =1047a(13) =1428a(14) =1956a(15) =2586a(16) =3414a(17) =4389a(18) =5638a(19) =7084a(20) =8888a(21) =10966a(22) =13494a(23) =16380a(24) =19841a(25) =23751a(26) =28371a(27) =33566a(28) =39616a(29) =46376