1,2
Project Euler, Investigate values of n for which phi(n) is a permutation of n.
Cf. A000010.
Sequence in context: A022452 A183731 A101703 * A086947 A101700 A022291
Adjacent sequences: A102015 A102016 A102017 * A102019 A102020 A102021
nonn,base
Gunnar Arn Stefainsson (gos(AT)hell.is), Jun 19 2007