Numbers k with k - 1, k + 1, prime(k) - k, prime(k) + k, k*prime(k) - 1, k*prime(k) + 1 all prime.

Terms

a(0) =22110a(1) =23742a(2) =128238a(3) =275592a(4) =346560a(5) =1061910a(6) =1281522a(7) =1339002a(8) =1378188a(9) =1461600a(10) =1850130a(11) =2064150a(12) =2354952a(13) =2478270a(14) =2523708a(15) =2689260a(16) =2694300a(17) =3916638a(18) =4422618a(19) =4933530a(20) =6179082a(21) =6541080a(22) =6641562a(23) =6740478a(24) =6759030a(25) =7315812a(26) =8484798a(27) =8711010a(28) =9133308a(29) =9687720