Expansion of Product_{m>=1} (1 + m*q^m)^6.

Terms

a(0) =1a(1) =6a(2) =27a(3) =110a(4) =387a(5) =1266a(6) =3896a(7) =11340a(8) =31629a(9) =84992a(10) =221028a(11) =558450a(12) =1375615a(13) =3310764a(14) =7803069a(15) =18044374a(16) =40998078a(17) =91653990a(18) =201842383a(19) =438312534a(20) =939439674a(21) =1988944070a(22) =4162521165a(23) =8617025112a(24) =17655688602a(25) =35823617658a(26) =72015578091a(27) =143499705550a(28) =283544586489a(29) =555779906772