Least positive integer m with prime(m)+2 and prime(prime(m))+2 both prime such that prime(m*n)+2 and prime(prime(m*n))+2 are both prime.
A259487
Least positive integer m with prime(m)+2 and prime(prime(m))+2 both prime such that prime(m*n)+2 and prime(prime(m*n))+2 are both prime.
Terms
- a(0) =2a(1) =1860a(2) =408a(3) =25011a(4) =51312a(5) =37977a(6) =695a(7) =4071a(8) =10970a(9) =3621a(10) =17671a(11) =12005a(12) =1230a(13) =19494a(14) =542a(15) =577a(16) =408a(17) =2476a(18) =584a(19) =542a(20) =469a(21) =34229a(22) =343a(23) =24078a(24) =3011a(25) =25749a(26) =20706a(27) =24198a(28) =2478a(29) =3926
External references
- oeis: A259487