15737865domain: NAppears in sequencesa(n) = 11*binomial(2n,n-5)/(n+6).at n=10A000589Central coefficients T(2n,n) of the Catalan triangle A033184.at n=10A174687Number of standard Young tableaux of shape [10n,10].at n=2A215550Number of Young tableaux of shape [n, floor(n/2)].at n=20A368567