Number of primes in range [2^n+1, 2^(n+1)] whose binary expansion begins '10' (A080165).

Terms

a(0) =0a(1) =1a(2) =1a(3) =3a(4) =4a(5) =6a(6) =12a(7) =22a(8) =38a(9) =70a(10) =130a(11) =237a(12) =441a(13) =825a(14) =1539a(15) =2897a(16) =5453a(17) =10335a(18) =19556a(19) =37243a(20) =70938a(21) =135555a(22) =259586a(23) =497790a(24) =956126a(25) =1839597a(26) =3544827a(27) =6839282a(28) =13212389a(29) =25552386