Positive numbers k of the form x*y where k, x and y have the same set of decimal digits.

Terms

a(0) =1a(1) =11a(2) =100a(3) =111a(4) =1000a(5) =1010a(6) =1100a(7) =1111a(8) =10000a(9) =10010a(10) =10100a(11) =10110a(12) =11000a(13) =11010a(14) =11100a(15) =11110a(16) =11111a(17) =31003a(18) =99190a(19) =100000a(20) =100010a(21) =100100a(22) =100110a(23) =101000a(24) =101010a(25) =101100a(26) =101101a(27) =101110a(28) =110000a(29) =110010