The Frobenius problem for Thabit numerical semigroups

Let n   be a positive integer and T(n)T(n) the numerical semigroup generated by {3.2n+i−1|i∈N}{3.2n+i−1|i∈N}. In this paper, we give formulas for the Frobenius number, the gender, the embedding dimension and the type of T(n)T(n).