McKay-Thompson series of class 20D for Monster.

Terms

a(0) =1a(1) =-2a(2) =1a(3) =-2a(4) =4a(5) =-6a(6) =9a(7) =-8a(8) =13a(9) =-20a(10) =22a(11) =-28a(12) =34a(13) =-46a(14) =57a(15) =-68a(16) =87a(17) =-104a(18) =127a(19) =-152a(20) =187a(21) =-232a(22) =267a(23) =-318a(24) =388a(25) =-462a(26) =545a(27) =-632a(28) =753a(29) =-896