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Number of digits in A090162(n).
1

%I #11 Jan 31 2023 12:33:10

%S 1,4,29,205,1412,9688,66416,455237,3120256

%N Number of digits in A090162(n).

%F a(n+1)/a(n) -> Phi^4 = 6.8541... - _Robert G. Wilson v_, Nov 23 2004

%t f[n_] := Floor[ Log[10, Binomial[ Fibonacci[2n]Fibonacci[2n + 1], Fibonacci[2n - 1]Fibonacci[2n] - 1]] + 1]; Do[ Print[ f[n]], {n, 9}] (* _Robert G. Wilson v_, Nov 23 2004 *)

%K nonn,base,more

%O 1,2

%A _Eric W. Weisstein_, Nov 23 2003 and _Wolfdieter Lang_, Dec 01 2003

%E a(7)-a(9) from _Robert G. Wilson v_, Nov 23 2004