296032

Appears in sequences

• Number of self-avoiding polygons of area n with one (self-avoiding polygon) hole on square lattice (not allowing rotations).at n=7A057406
• Number of cubic equations ax^3 + bx^2 + cx + d = 0 with integer coefficients |a|,|b|,|c|,|d| <= n, a <> 0, having one real root and two conjugate complex roots.at n=12A155193