41378005domain: NAppears in sequencesa(0)=1, a(1)=5, a(n)=11*a(n-1)-25*a(n-2) for n>1.at n=9A165312a(n) = a(n-1) + 5*a(n-2), for n >= 0, with a(0) = 1 and a(1) = 0.at n=18A365824