23539612

Appears in sequences

• Numbers n such that pi(n) = prime(d_1)*prime(d_2)*...*prime(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.at n=7A098683
• Numbers n such that pi(n) = prime(d_1)*prime(d_2)* ... *prime(d_k), where d_1, d_2, ... d_k is the decimal expansion of n, and the zeroth prime is 1.at n=18A160040