108154

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, 1, 2, 2.at n=15A025244
• a(1)=1, then a(n) = smallest number whose square is larger than 2*(a(n-1))^2.at n=31A175539
• Expansion of (1-3*x^2) / (1-x-4*x^2+2*x^3+2*x^4).at n=16A384598