3528923580

Appears in sequences

• Expansion of 1/(1-4*x)^(7/2).at n=12A020918
• a(n) = (10n)!*n!/((5n)!*(4n)!*(2n)!).at n=3A061163
• a(n) = ((5*n)!/(n!*(2*n)!))*(Gamma(1+n/2)/Gamma(1+5*n/2)).at n=6A091496
• Square array read by ascending antidiagonals: T(n,k) = [x^(2*k)] ( (1 + x)^(n+2)/(1 - x)^(n-2) )^k for n, k >= 0.at n=51A364518