384238402domain: NAppears in sequencesa(n) = 5*a(n-1)+a(n-2) for n>1, a(0)=2, a(1)=5.at n=12A087130a(n) = 27a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 27.at n=6A090248