The number of even prime gaps g, satisfying g == 4 (mod 6), out of the first 2^n even prime gaps.

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =5a(5) =11a(6) =22a(7) =41a(8) =83a(9) =169a(10) =319a(11) =627a(12) =1223a(13) =2445a(14) =4868a(15) =9638a(16) =19118a(17) =37967a(18) =75256a(19) =149528a(20) =297561a(21) =592031a(22) =1178762a(23) =2348333a(24) =4679404a(25) =9326903a(26) =18596997a(27) =37086109a(28) =73967841a(29) =147557809