Hi, i`ve been trying to solve with problem 1182E - Product Oriented Recurrence. But i have some troubles with such a recurrence: F(n)=g(n)*C+F(n-1)+F(n-2)+F(n-3), where g(n)=2*n-6, n>=4 and i know F(1),F(2),F(3). How should i approach this and similar recurrences? Thanks in advance!