Numbers n such that every digit of both n and n^2 contains a loop (only digits 0,4,6,8,9 in n and n^2).
A107626
Numbers n such that every digit of both n and n^2 contains a loop (only digits 0,4,6,8,9 in n and n^2).
Terms
- a(0) =8a(1) =64a(2) =80a(3) =98a(4) =640a(5) =664a(6) =800a(7) =898a(8) =980a(9) =998a(10) =6400a(11) =6640a(12) =6664a(13) =8000a(14) =8980a(15) =8998a(16) =9800a(17) =9980a(18) =9998a(19) =64000a(20) =66400a(21) =66640a(22) =66664a(23) =80000a(24) =89800a(25) =89980a(26) =89998a(27) =98000a(28) =98998a(29) =99800
External references
- oeis: A107626