Numbers of the form b^m/2 for even b and odd m > 2.

Terms

a(0) =4a(1) =16a(2) =32a(3) =64a(4) =108a(5) =256a(6) =500a(7) =512a(8) =864a(9) =1024a(10) =1372a(11) =2048a(12) =2916a(13) =3888a(14) =4000a(15) =4096a(16) =5324a(17) =6912a(18) =8192a(19) =8788a(20) =10976a(21) =13500a(22) =16384a(23) =19652a(24) =23328a(25) =27436a(26) =32000a(27) =37044a(28) =42592a(29) =48668