McKay-Thompson series of class 20b for Monster.

Terms

a(0) =1a(1) =4a(2) =3a(3) =16a(4) =20a(5) =48a(6) =55a(7) =108a(8) =141a(9) =248a(10) =326a(11) =516a(12) =662a(13) =1048a(14) =1335a(15) =2000a(16) =2547a(17) =3672a(18) =4689a(19) =6588a(20) =8379a(21) =11500a(22) =14513a(23) =19644a(24) =24688a(25) =32896a(26) =41115a(27) =53964a(28) =67301a(29) =87312