Least positive integer k such that prime(k)-k, prime(k)+k, prime(k*n)-k*n, prime(k*n)+k*n, prime(k)+k*n and prime(k*n)+k are all prime.

A259492

Least positive integer k such that prime(k)-k, prime(k)+k, prime(k*n)-k*n, prime(k*n)+k*n, prime(k)+k*n and prime(k*n)+k are all prime.

Terms

    a(0) =4a(1) =48852a(2) =6a(3) =27330a(4) =89814a(5) =13080a(6) =9570a(7) =44592a(8) =6762a(9) =28560a(10) =1560a(11) =8580a(12) =2958a(13) =672a(14) =9816a(15) =6300a(16) =40050a(17) =53580a(18) =3354a(19) =858a(20) =4530a(21) =100650a(22) =182520a(23) =49740a(24) =48660a(25) =25296a(26) =66990a(27) =87120a(28) =43680a(29) =6840

External references