Expansion of Product_{k>=1} (1 + x^k) * (1 + x^(2*k)) * (1 + x^(3*k)) / ((1 - x^k) * (1 - x^(2*k)) * (1 - x^(3*k))).

A327048

Expansion of Product_{k>=1} (1 + x^k) * (1 + x^(2*k)) * (1 + x^(3*k)) / ((1 - x^k) * (1 - x^(2*k)) * (1 - x^(3*k))).

Terms

    a(0) =1a(1) =2a(2) =6a(3) =14a(4) =30a(5) =60a(6) =120a(7) =220a(8) =402a(9) =710a(10) =1224a(11) =2064a(12) =3438a(13) =5596a(14) =9012a(15) =14304a(16) =22422a(17) =34740a(18) =53330a(19) =80960a(20) =121908a(21) =181976a(22) =269484a(23) =396072a(24) =578232a(25) =838258a(26) =1207896a(27) =1730058a(28) =2463900a(29) =3490020

External references