A100022 Number of digits in A090162(n).

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

Offset: 1

Author

Eric W. Weisstein, Nov 23 2003 and Wolfdieter Lang, Dec 01 2003

Keywords

• nonn
• base
• more

Programs

Mathematica

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 *)

Formula

a(n+1)/a(n) -> Phi^4 = 6.8541... - Robert G. Wilson v, Nov 23 2004

Extensions

a(7)-a(9) from Robert G. Wilson v, Nov 23 2004