If n = Sum 2^e(k), then a(n) = Sum 2^a(e(k)), with a(0) = 1.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =16a(5) =18a(6) =20a(7) =22a(8) =64a(9) =66a(10) =68a(11) =70a(12) =80a(13) =82a(14) =84a(15) =86a(16) =65536a(17) =65538a(18) =65540a(19) =65542a(20) =65552a(21) =65554a(22) =65556a(23) =65558a(24) =65600a(25) =65602a(26) =65604a(27) =65606a(28) =65616a(29) =65618