Product of prime(n+1)-1 and prime(n)-1.

Terms

a(0) =2a(1) =8a(2) =24a(3) =60a(4) =120a(5) =192a(6) =288a(7) =396a(8) =616a(9) =840a(10) =1080a(11) =1440a(12) =1680a(13) =1932a(14) =2392a(15) =3016a(16) =3480a(17) =3960a(18) =4620a(19) =5040a(20) =5616a(21) =6396a(22) =7216a(23) =8448a(24) =9600a(25) =10200a(26) =10812a(27) =11448a(28) =12096a(29) =14112