A046864 Smallest number whose digits sum to n-th prime.

2, 3, 5, 7, 29, 49, 89, 199, 599, 2999, 4999, 19999, 59999, 79999, 299999, 899999, 5999999, 7999999, 49999999, 89999999, 199999999, 799999999, 2999999999, 8999999999, 79999999999, 299999999999, 499999999999, 899999999999