%I #6 Jan 22 2020 12:43:49
%S 1,0,1,2,9,22,109,390,2249,10006,53540,207218,967733,3587686,14902072,
%T 56388126,220066307,867528322,3324603126,13719108983
%N a(n) is the number of terms in A330418 with exactly n digits.
%Y Cf. A330367, A330418.
%K nonn,base,more
%O 1,4
%A _Lars Blomberg_, Dec 14 2019