Sums of two powers of 16.

Terms

a(0) =2a(1) =17a(2) =32a(3) =257a(4) =272a(5) =512a(6) =4097a(7) =4112a(8) =4352a(9) =8192a(10) =65537a(11) =65552a(12) =65792a(13) =69632a(14) =131072a(15) =1048577a(16) =1048592a(17) =1048832a(18) =1052672a(19) =1114112a(20) =2097152a(21) =16777217a(22) =16777232a(23) =16777472a(24) =16781312a(25) =16842752a(26) =17825792a(27) =33554432a(28) =268435457