Products n of a square of a prime and a cube of a prime such that n-1 and n+1 are semiprimes.
A166988
Products n of a square of a prime and a cube of a prime such that n-1 and n+1 are semiprimes.
Terms
- a(0) =392a(1) =14792a(2) =19652a(3) =48668a(4) =55112a(5) =197192a(6) =291848a(7) =783752a(8) =908552a(9) =963272a(10) =1203052a(11) =1541768a(12) =1670792a(13) =5081672a(14) =5903048a(15) =8193532a(16) =9732872a(17) =10089032a(18) =10285412a(19) =12241352a(20) =13333448a(21) =13960328a(22) =14087432a(23) =14818568a(24) =15882248a(25) =16290632
External references
- oeis: A166988