Numbers k such that reverse(phi(k)) = k.

Terms

a(0) =1a(1) =21a(2) =63a(3) =291a(4) =2991a(5) =6102a(6) =46676013a(7) =69460293a(8) =2346534651a(9) =6313047393a(10) =23400000651a(11) =80050617822a(12) =234065340651a(13) =234659934651