Number of n-tuples (p_1, p_2, ..., p_n) of positive integers such that p_{i-1} <= p_i <= n^(i-1).

A355561

Number of n-tuples (p_1, p_2, ..., p_n) of positive integers such that p_{i-1} <= p_i <= n^(i-1).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =24a(4) =3236a(5) =7173370a(6) =330736663032

External references