A361402 a(1) = 5; a(n+1) is the smallest prime p > a(n) such that digsum(p) = a(n).
5, 23, 599, 7899999999999999999999999999999999999999999999999899999999999999999
Offset: 1
Examples
a(3) = 599 because 599 is the smallest prime > a(2) whose sum of digits is 5 + 9 + 9 = 23 = a(2).