Cumulative product of A000120.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =4a(6) =8a(7) =24a(8) =24a(9) =48a(10) =96a(11) =288a(12) =576a(13) =1728a(14) =5184a(15) =20736a(16) =20736a(17) =41472a(18) =82944a(19) =248832a(20) =497664a(21) =1492992a(22) =4478976a(23) =17915904a(24) =35831808a(25) =107495424a(26) =322486272a(27) =1289945088a(28) =3869835264a(29) =15479341056