70148989

Appears in sequences

• Convolution related to array A205497 and to generating functions for the rows of the array form of A050446.at n=6A205496
• a(n) = A205497(2*n, n - 1). The central coefficients of the Eulerian zig-zag polynomials.at n=7A373754
• a(n) = A205497(n, floor((n - 1) / 2)). The middle coefficients of the Eulerian zig-zag polynomials.at n=14A373755