Numbers that are highly powerful in Gaussian integers.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =100a(8) =200a(9) =400a(10) =500a(11) =800a(12) =1000a(13) =2000a(14) =4000a(15) =5000a(16) =8000a(17) =10000a(18) =18000a(19) =20000a(20) =27000a(21) =36000a(22) =40000a(23) =50000a(24) =54000a(25) =80000a(26) =90000a(27) =108000a(28) =135000a(29) =180000