Powers of superprimorials that are not powers of 2.

Terms

a(0) =12a(1) =144a(2) =360a(3) =1728a(4) =20736a(5) =75600a(6) =129600a(7) =248832a(8) =2985984a(9) =35831808a(10) =46656000a(11) =174636000a(12) =429981696a(13) =5159780352a(14) =5715360000a(15) =16796160000a(16) =61917364224a(17) =743008370688