Where is the oxygen sensors for a 2004 honda accord ex v6?

Where is bank 1 sensor 1, where is bank 1 sensor 2, bank 2 sensor 1, bank 2 sensor 2. I found two o2 sensors but I don't know which ones they are
My engine cylinders are 123
456
One o2 sensor is right in front of the 5th cylinder and between the radiator. The second one is behind the 2nd cylinder basically in the opposite spot from where the other the cylinder is. What o2 sensors did I find? Where are the other 2?

Behind the cats

Bank one is either the left or right side. Bank two is which ever side isn't bank one.
Sensor 1 in either bank is between the engine and the cat. Sensor 2 is behind the cat.
You can find the O2 sensors in any vehicle by tracing the exhaust from the engine back to the tail pipe. The wires coming out of the exhaust are attached to the O2 sensors.

Bank 1 is usually the side of piston 1, based on firing order.
On a car with two cats, sensor one is upstream (before the cat) and sensor two is after the cat.

I think you only have one cat, so one of the banks may have sensor right at the manifold, then one down the pipe.
I have no idea why they would not just have 2 upstream and one downstream. Not your answer exactly but hope that helps.