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%I #5 Jan 11 2024 10:54:41
%S 0,4,428,58747,1758473969,340760636747,14410746502617904,
%T 673020037180959760871,1736622037158911219053381734718,
%U 400539731185759177060380684246324
%N a(n) = A080301(A080318(n)).
%Y Cf. A080320.
%K nonn
%O 0,2
%A _Antti Karttunen_, Mar 02 2003