Even terms in A247665 in order of appearance.

Terms

a(0) =2a(1) =4a(2) =8a(3) =14a(4) =16a(5) =32a(6) =64a(7) =128a(8) =122a(9) =244a(10) =256a(11) =512a(12) =866a(13) =1024a(14) =1766a(15) =2048a(16) =4006a(17) =4096a(18) =8192a(19) =8482a(20) =12242a(21) =16384a(22) =32768a(23) =52586a(24) =65536a(25) =105806a(26) =131072