Numbers whose prime exponents generates rotationally symmetric XOR-triangles.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =42a(7) =64a(8) =70a(9) =128a(10) =256a(11) =390a(12) =512a(13) =1024a(14) =1122a(15) =1764a(16) =2002a(17) =2048a(18) =2210a(19) =4096a(20) =4900a(21) =6270a(22) =7854a(23) =8192a(24) =9450a(25) =15470a(26) =15750a(27) =16384a(28) =26460a(29) =32768