Number of n-bit binary reversible primes.

Terms

a(0) =0a(1) =1a(2) =2a(3) =2a(4) =4a(5) =6a(6) =9a(7) =14a(8) =27a(9) =36a(10) =69a(11) =94a(12) =178a(13) =308a(14) =589a(15) =908a(16) =1540a(17) =2814a(18) =5158a(19) =9210a(20) =16732a(21) =29392a(22) =55109a(23) =101120a(24) =179654a(25) =332130a(26) =625928a(27) =1136814a(28) =2120399a(29) =3963166