1790712

Appears in sequences

• a(n) = 6*(2*n+1)! / ((n!)^2*(n+3)).at n=10A007946
• Number of diagonal dissections of an n-gon into 7 regions.at n=6A033279
• Number of diagonal dissections of a convex (n+8)-gon into n+1 regions.at n=6A033280
• 1/512 of 11th unsigned column of triangle A053120 (T-Chebyshev, rising powers, zeros omitted).at n=13A054334
• a(n) = 6*(n+1)!/((3+floor(n/2))*(floor(n/2)!)^2).at n=20A242986