Numbers k such that k and k^2 use only the digits 0, 1, 3, 4 and 6.

Terms

a(0) =0a(1) =1a(2) =4a(3) =6a(4) =10a(5) =40a(6) =60a(7) =100a(8) =400a(9) =600a(10) =1000a(11) =1146a(12) =4000a(13) =6000a(14) =10000a(15) =10301a(16) =11460a(17) =33631a(18) =40000a(19) =60000a(20) =100000a(21) =103010a(22) =103131a(23) =114600a(24) =336310a(25) =400000a(26) =404306a(27) =600000a(28) =601344a(29) =603444