Partial products of PartitionsQ numbers (A000009).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =12a(6) =48a(7) =240a(8) =1440a(9) =11520a(10) =115200a(11) =1382400a(12) =20736000a(13) =373248000a(14) =8211456000a(15) =221709312000