124650

Appears in sequences

• Number of weighted voting procedures.at n=17A005257
• Exponential Riordan array [1+x^2*sec(x), x].at n=55A166378
• Triangle read by rows, expansion of exp(x*z)*z*(tanh(z) + sech(z)), T(n, k) for n >= 1 and 0 <= k <= n-1.at n=46A294033