Positive integers not the sum of iterated binary logs.

Terms

a(0) =2a(1) =5a(2) =6a(3) =11a(4) =20a(5) =21a(6) =22a(7) =39a(8) =72a(9) =137a(10) =266a(11) =267a(12) =524a(13) =1037a(14) =2062a(15) =4111a(16) =8208a(17) =16401a(18) =32786a(19) =65555a(20) =65556a(21) =65557a(22) =65558a(23) =131095a(24) =262168a(25) =524313a(26) =1048602a(27) =2097179a(28) =4194332a(29) =8388637