55580domain: NAppears in sequencesa(n) = Floor(Fibonacci(n)^(1/Pi)).at n=73A171962Number of n X 5 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 0 1 vertically.at n=9A209647Expansion of Sum_{i>=1} mu(i)^2*x^i/(1 - x^i) / Product_{j>=1} (1 - mu(j)^2*x^j), where mu() is the Moebius function (A008683).at n=35A281572