1008263880domain: NAppears in sequencesa(n) = Fibonacci(n) * Catalan(n).at n=14A119694Oscillating orbitals over n sectors (nonpositive values indicating there exist none).at n=29A232500G.f. C(x)^(1/2) satisfies C(x)^(1/2) - S(x)^(1/2) = 1 such that C'(x)*S(x)^(1/2) = S'(x)*C(x)^(1/2) = 72*x.at n=11A299855