Numbers of the form 4^j + 8^k, for j and k >= 0.

Terms

a(0) =2a(1) =5a(2) =9a(3) =12a(4) =17a(5) =24a(6) =65a(7) =68a(8) =72a(9) =80a(10) =128a(11) =257a(12) =264a(13) =320a(14) =513a(15) =516a(16) =528a(17) =576a(18) =768a(19) =1025a(20) =1032a(21) =1088a(22) =1536a(23) =4097a(24) =4100a(25) =4104a(26) =4112a(27) =4160a(28) =4352a(29) =4608