-66211704

Appears in sequences

• A(n,k) = Sum_{i_1=0..n} Sum_{i_2=0..n} ... Sum_{i_k=0..n} (-1)^(i_1 + i_2 + ... + i_k) * multinomial(i_1 + i_2 + ... + i_k; i_1, i_2, ..., i_k), square array A(n,k) read by antidiagonals, for n >= 0, k >= 0.at n=39A308322
• a(n) = Sum_{i=0..n} Sum_{j=0..n} Sum_{k=0..n} Sum_{l=0..n} Sum_{m=0..n} (-1)^(i+j+k+l+m) * (i+j+k+l+m)!/(i!*j!*k!*l!*m!).at n=3A308325