a(n) = smallest k such that A260273(k) >= 2^n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =7a(5) =12a(6) =19a(7) =34a(8) =61a(9) =110a(10) =200a(11) =371a(12) =697a(13) =1310a(14) =2484a(15) =4739a(16) =9072a(17) =17458a(18) =33671a(19) =65128a(20) =126225a(21) =244802a(22) =475124a(23) =922891a(24) =1793461a(25) =3487348a(26) =6784691a(27) =13208038a(28) =25731600a(29) =50166771