Numbers n such that sigma(phi(n)) = reversal(n).

A071525

Numbers n such that sigma(phi(n)) = reversal(n).

Terms

    a(0) =1a(1) =3a(2) =304a(3) =918a(4) =23922a(5) =2388063a(6) =88423222968a(7) =655516144546

External references