Numbers that are the sum or product of two numbers, such that the sum and product have reversed digits.

A166749

Numbers that are the sum or product of two numbers, such that the sum and product have reversed digits.

Terms

    a(0) =0a(1) =4a(2) =18a(3) =27a(4) =49a(5) =72a(6) =81a(7) =94a(8) =499a(9) =994a(10) =4999a(11) =9994a(12) =49999a(13) =99994a(14) =499999a(15) =999994a(16) =4999999a(17) =9999994a(18) =49999999a(19) =99999994a(20) =499999999a(21) =999999994a(22) =4999999999a(23) =9999999994a(24) =49999999999a(25) =99999999994a(26) =499999999999a(27) =999999999994

External references