2,1

Rémy Sigrist, Table of n, a(n) for n = 2..10000

Index entries for sequences related to automorphic numbers

a(n) <= n+1 with equality iff n belongs to A065296.

a(10) = A082576(2) = 5.

(PARI) a(n) = for (k=2, oo, if (Mod(k, n^#digits(k, n))^k==k, return (k)))

Cf. A065296, A082576.

Sequence in context: A332880 A281626 A327650 * A242801 A021295 A061112

Adjacent sequences: A338125 A338126 A338127 * A338129 A338130 A338131

nonn,base

Rémy Sigrist, Oct 11 2020

approved