-234503

Appears in sequences

• Revert transform of (x - 1)^2/(1 - x - x^3).at n=13A049133
• a(n) = 3*a(n-1) - 3*a(n-2) + a(n-3) - a(n-4), n>=4; a(0) = 1, a(1) = 1, a(2) = 2, a(3) = 3.at n=25A193885