-12050

Appears in sequences

• Triangle, read by rows, T(n,k) = f(n,k) - f(n,0) + 1, where f(n,k) = Sum_{j=0..k} (n+k)!/((n-j)!*(k-j)!*j!) + Sum_{j=0..n-k} (2*n-k)!/((n-j)!*(n - k-j)!*j!).at n=11A176082
• Triangle, read by rows, T(n,k) = f(n,k) - f(n,0) + 1, where f(n,k) = Sum_{j=0..k} (n+k)!/((n-j)!*(k-j)!*j!) + Sum_{j=0..n-k} (2*n-k)!/((n-j)!*(n - k-j)!*j!).at n=13A176082