4069800

Appears in sequences

• a(n) = 7*(n+1)*binomial(n+6,7)/2.at n=13A027819
• Triangle read by rows: T(n, m) = (n+1-m)*C(2*n+2-m, m)*C(3*n-3*m+2, n-m+1)/(2*n-m+2).at n=38A360546