549904

Appears in sequences

• Expansion of e.g.f. exp(x)/(cos(x) - sin(x)).at n=8A201158
• Array read by downward antidiagonals: A(n,k) = A(n-1,k) + (k+1)*A(n-1,k+1) + k*A(n-1,k-1) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1.at n=44A391886