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a(n) is the number of terms in A330418 with exactly n digits.
1

%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