242132

Appears in sequences

• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-3)*a(3) for n >= 4, with initial terms 2, -2, 1, 2.at n=20A025260
• Expansion of Product_{k>=1} 1/(1 - x^k)^A007434(k).at n=15A301875