Primes p such that p, p - 1, p - 2 and p - 3 have 2, 4, 6 and 8 divisors respectively.

Terms

a(0) =1019a(1) =226379a(2) =645419a(3) =893099a(4) =967259a(5) =1744859a(6) =1880939a(7) =1996859a(8) =2238779a(9) =2435339a(10) =2999099a(11) =3316619a(12) =3734219a(13) =4092059a(14) =4269899a(15) =4344779a(16) =4511099a(17) =4681739a(18) =4692539a(19) =5857499a(20) =5993579a(21) =6476699a(22) =6744539a(23) =6848939a(24) =6855419a(25) =8160059a(26) =8608619a(27) =8755499a(28) =9254459