-7248

Appears in sequences

• Low-temperature magnetization expansion for hexagonal lattice (Potts model, q=4).at n=19A057386
• a(1)=1, a(2)=1, a(n) = (n-1)*a(n-1) - (n-2)*a(n-2) - ... - a(1) for n>=3.at n=8A106539