Li estimate of the number of primes in successive power of two intervals [2^i, 2^(i+1)) for i >= 1.

Terms

a(0) =2a(1) =3a(2) =4a(3) =6a(4) =9a(5) =15a(6) =25a(7) =44a(8) =78a(9) =141a(10) =256a(11) =471a(12) =873a(13) =1625a(14) =3040a(15) =5713a(16) =10774a(17) =20385a(18) =38684a(19) =73603a(20) =140374a(21) =268298a(22) =513811a(23) =985763a(24) =1894365a(25) =3646034a(26) =7027395a(27) =13562528a(28) =26207171a(29) =50698756