Numbers that are sums of consecutive powers of 4.

Terms

a(0) =1a(1) =4a(2) =5a(3) =16a(4) =20a(5) =21a(6) =64a(7) =80a(8) =84a(9) =85a(10) =256a(11) =320a(12) =336a(13) =340a(14) =341a(15) =1024a(16) =1280a(17) =1344a(18) =1360a(19) =1364a(20) =1365a(21) =4096a(22) =5120a(23) =5376a(24) =5440a(25) =5456a(26) =5460a(27) =5461a(28) =16384a(29) =20480