Numbers k such that k and k^2 use only the digits 0, 3, 5 and 6.
A136936
Numbers k such that k and k^2 use only the digits 0, 3, 5 and 6.
Terms
- a(0) =0a(1) =6a(2) =60a(3) =600a(4) =6000a(5) =60000a(6) =600000a(7) =6000000a(8) =60000000a(9) =60553006a(10) =600000000a(11) =605530060a(12) =6000000000a(13) =6055300600a(14) =60000000000a(15) =60553006000a(16) =600000000000a(17) =605530060000
External references
- oeis: A136936