Expansion of 1 / ( (1 - x)*(1 + 2*x)*(1 - 4*x) )^(1/3).

Terms

a(0) =1a(1) =1a(2) =4a(3) =10a(4) =37a(5) =121a(6) =442a(7) =1576a(8) =5818a(9) =21466a(10) =80272a(11) =301324a(12) =1138762a(13) =4320226a(14) =16459132a(15) =62904664a(16) =241134553a(17) =926678569a(18) =3569385772a(19) =13776307714a(20) =53267766997a(21) =206304355225a(22) =800203300354