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

A354621

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

Terms

    a(0) =1a(1) =2a(2) =5a(3) =19a(4) =85a(5) =586a(6) =3583a(7) =28568a(8) =195449a(9) =1666786a(10) =18757980a(11) =161386953a(12) =1897428757a(13) =20910643255a(14) =186584844271

External references