50302domain: NAppears in sequencesa(1)=1, a(n) = n*23^(n-1) + a(n-1).at n=3A014941a(n) = 1 + 2*n + 3*n^2 + 4*n^3.at n=23A056578a(n) = smallest k such that Sum_{i=1..k} log(p_i)/p_i >= n, where p_i is the i-th prime.at n=11A347310