833020346368domain: NAppears in sequencesa(0) = a(1) = 1; a(n+2) = 2*a(n+1) + 2*a(n).at n=28A026150a(n) = 8*a(n-1) - 4*a(n-2), where a(0) = 1, a(1) = 4.at n=14A090965