Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 8.

Terms

a(0) =0a(1) =5a(2) =50a(3) =55a(4) =235a(5) =500a(6) =505a(7) =550a(8) =555a(9) =2255a(10) =2350a(11) =2885a(12) =5000a(13) =5005a(14) =5050a(15) =5055a(16) =5500a(17) =5505a(18) =5550a(19) =5555a(20) =22550a(21) =23500a(22) =28850a(23) =50000a(24) =50005a(25) =50050a(26) =50055a(27) =50235a(28) =50500a(29) =50550