2078505

Appears in sequences

• Coefficients of Legendre polynomials.at n=8A001801
• Denominator of n!!/(n+3)!!.at n=16A004733
• Triangle of coefficients of Legendre polynomials P_n (x).at n=46A008316
• Denominator of 2*Sum(C(n,w)/(2*w+1),w=0..n/2-1)+C(n,n/2)/(n+1) if n is even, or of 2*Sum(C(n,w)/(2*w+1),w=0..(n-1)/2) if n is odd.at n=32A085569
• Coefficient of x^2 in 2n-th normalized Legendre polynomial.at n=8A100259
• a(n) is the least integer of the form (n-2)(n-4)...(n-2k)/n. 0 if no such number exists.at n=20A109898
• Denominator the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=14.at n=10A145638