Binary widths of A072790.

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =6a(5) =8a(6) =13a(7) =23a(8) =43a(9) =82a(10) =160a(11) =316a(12) =628a(13) =1252a(14) =2500a(15) =4997