Numbers k such that phi(k) is the reversal of sigma(k).

A069225

Numbers k such that phi(k) is the reversal of sigma(k).

Terms

    a(0) =1a(1) =65a(2) =2771a(3) =10920a(4) =158804a(5) =2413091a(6) =16636354a(7) =117650080a(8) =140766297a(9) =630947067a(10) =4639526938a(11) =153896850898

External references