-5281

Appears in sequences

• Expansion of (3+8*x-3*x^2-2*x^3)/((x^2+4*x+1)*(x^2-2*x-1)).at n=6A111639
• Square array read by ascending antidiagonals: number of m-shape complementary Bell numbers.at n=31A260875
• a(n) = (4*n)! * [z^(4*n)] exp(1 - (cos(z) + cosh(z))/2).at n=3A291976