The number of even prime gaps g satisfying g == 2 (mod 6) out of the first 2^n even prime gaps.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =7a(5) =13a(6) =23a(7) =43a(8) =85a(9) =170a(10) =320a(11) =628a(12) =1224a(13) =2446a(14) =4869a(15) =9640a(16) =19119a(17) =37969a(18) =75258a(19) =149530a(20) =297562a(21) =592033a(22) =1178763a(23) =2348334a(24) =4679406a(25) =9326904a(26) =18596999a(27) =37086110a(28) =73967842a(29) =147557811