-56364

Appears in sequences

• Nonzero coefficients of the Swiss-Knife polynomials for the computation of Euler, tangent, and Bernoulli numbers (triangle read by rows).at n=45A153641
• a(n) = Euler(2*n)*binomial(4*n,2*n).at n=3A214445
• G.f. A(x) satisfies: A(x) = x - x^2 * exp(A(x) - A(x^2)/2 + A(x^3)/3 - A(x^4)/4 + ...).at n=25A363087