a(n) is the smallest nonnegative solution k to 24*k == 1 (mod 7^(2*n-2)).

A052463

a(n) is the smallest nonnegative solution k to 24*k == 1 (mod 7^(2*n-2)).

Terms

    a(0) =0a(1) =47a(2) =2301a(3) =112747a(4) =5524601a(5) =270705447a(6) =13264566901a(7) =649963778147

External references