Least integer k such that k/2^n > Pi.

Terms

a(0) =4a(1) =7a(2) =13a(3) =26a(4) =51a(5) =101a(6) =202a(7) =403a(8) =805a(9) =1609a(10) =3217a(11) =6434a(12) =12868a(13) =25736a(14) =51472a(15) =102944a(16) =205888a(17) =411775a(18) =823550a(19) =1647100a(20) =3294199a(21) =6588398a(22) =13176795a(23) =26353590a(24) =52707179a(25) =105414358a(26) =210828715a(27) =421657429a(28) =843314857a(29) =1686629714