118615793domain: NAppears in sequencesa(n+3) = 5*a(n+2)-4*a(n+1)+a(n).at n=15A012866a(n) = 3*a(n-1) - 2*a(n-2) + a(n-3), n > 3.at n=22A137584a(n) = a(n-1) + a(n-2) + a(n-4), with a(1)=1, a(2)=1, a(3)=3, a(4)=6.at n=33A259968