Numbers n such that sigma(n)=4*reversal(n).

A114928

Numbers n such that sigma(n)=4*reversal(n).

Terms

    a(0) =42a(1) =402a(2) =492a(3) =4000002a(4) =57906504a(5) =400000002a(6) =4000000002a(7) =6279090751a(8) =62698513951a(9) =400000000002

External references