Semiprimes of the form prime(n)*prime(n+1)*prime(n+2) - 1.

Terms

a(0) =4198a(1) =33262a(2) =1564258a(3) =6672202a(4) =7566178a(5) =18181978a(6) =20193022a(7) =178433278a(8) =187466722a(9) =229580146a(10) =293158126a(11) =467821918a(12) =1125878062a(13) =1341880018a(14) =4317369778a(15) =5198554618a(16) =8493529942a(17) =10138087306a(18) =10594343758a(19) =20940647698