a(1) = 37. For n > 1, a(n) = smallest prime q such that q^(a(n-1)-1) == 1 (mod a(n-1)^2).

A355600

a(1) = 37. For n > 1, a(n) = smallest prime q such that q^(a(n-1)-1) == 1 (mod a(n-1)^2).

Terms

    a(0) =37a(1) =691a(2) =19181a(3) =5849a(4) =18503a(5) =37853a(6) =478741a(7) =18401827a(8) =571007279a(9) =5860639859a(10) =77611167983a(11) =374047389769a(12) =43687540753a(13) =71219656447a(14) =545957566963

External references