Numbers k such that the k-th and the (k+1)-st primes are twin primes.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =10a(5) =13a(6) =17a(7) =20a(8) =26a(9) =28a(10) =33a(11) =35a(12) =41a(13) =43a(14) =45a(15) =49a(16) =52a(17) =57a(18) =60a(19) =64a(20) =69a(21) =81a(22) =83a(23) =89a(24) =98a(25) =104a(26) =109a(27) =113a(28) =116a(29) =120