Numbers n such that phi(n)=phi(d_1)^phi(d_1)*phi(d_2)^phi(d_2)* ...*phi(d_k)^phi(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.

A104898

Numbers n such that phi(n)=phi(d_1)^phi(d_1)*phi(d_2)^phi(d_2)* ...*phi(d_k)^phi(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.

Terms

    a(0) =1a(1) =2a(2) =34a(3) =512a(4) =34816a(5) =421192a(6) =1213173a(7) =1311471a(8) =2291616a(9) =2622942a(10) =7624162a(11) =12333173a(12) =13421568a(13) =15221171a(14) =27132646a(15) =41134392a(16) =49131264a(17) =76142643a(18) =121676464a(19) =124127822a(20) =143327424a(21) =143942616a(22) =149424426a(23) =166467132a(24) =194626614a(25) =227826131a(26) =417414464a(27) =423432736

External references