Primes in A166448.

Terms

a(0) =3a(1) =71a(2) =379a(3) =1367a(4) =2741a(5) =6599a(6) =11593a(7) =13093a(8) =13879a(9) =22027a(10) =46183a(11) =70237a(12) =72173a(13) =76123a(14) =104347a(15) =106721a(16) =109141a(17) =134741a(18) =145949a(19) =191749a(20) =225829a(21) =236659a(22) =271057a(23) =275047a(24) =279047a(25) =283079a(26) =303689a(27) =360977a(28) =374953a(29) =403607