3660541

Properties

Appears in sequences

• a(n) = Sum_{k=0..n} binomial(2*k,k).at n=12A006134
• Number of rational knots of n crossings with signature 0 (chiral pairs counted twice).at n=25A078478
• Expansion of x/((1-x)*sqrt(1-4*x^2)).at n=25A100066
• Expansion of x/((1-x)*sqrt(1-4*x^2)).at n=26A100066
• Antidiagonal sums of A096465.at n=25A124642
• Expansion of (1+2x-sqrt(1-4x^2))/(2(1-x^2)*sqrt(1-4x^2)).at n=25A174783
• Numerators of coefficients associated with the second virial coefficient for rigid spheres with imbedded point dipoles.at n=11A336061
• Prime numbersat n=260749