451269

Appears in sequences

• Central factorial numbers: A008955(n,2).at n=12A000596
• Seventh column of Catalan triangle A009766.at n=18A064059
• Number A(n,k) of standard Young tableaux of shape [n*k,n]; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=61A214776
• a(n) = binomial(5*n,n)*(3*n+1)/(4*n+1).at n=6A215541
• Number of standard Young tableaux of shape [6n,6].at n=4A215546