20036983

Properties

Appears in sequences

• a(n) = Sum_{k=0..n-1} binomial(2*n,2*k)*a(k)*a(n-k-1).at n=6A002067
• Numerators of coefficients in the series for inverf(2x/sqrt(Pi)).at n=6A092676
• Regular triangle whose rows are the coefficients of the Dominici expansion of f(t,x) = (1/2)*(1 - t^2)^(-x) with respect to t.at n=15A320842
• Prime numbersat n=1272839