162334

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 1, 0, 2, 2.at n=17A025248
• sigma(n) + phi(n) is a fourth power.at n=29A114068