Least k such that k*6^n +/- 1 are twin primes.

Terms

a(0) =1a(1) =2a(2) =2a(3) =2a(4) =18a(5) =3a(6) =33a(7) =255a(8) =212a(9) =115a(10) =147a(11) =102a(12) =17a(13) =33a(14) =308a(15) =87a(16) =198a(17) =33a(18) =172a(19) =418a(20) =210a(21) =35a(22) =158a(23) =847a(24) =1010a(25) =292a(26) =157a(27) =1318a(28) =263a(29) =212