How many Scan Listeners, we have to configure for 5 Node RAC?

Dear Professionals,
How many scan Listeners we need to configure for 5 Node RAC? Oracle will not allow us to create More than 3 scan's? What If i have one scan Listener per each for 1st 3 node's? what about remaining two Node's? How application user will connect to 4 or 5 Node? Can you please explain..? Forgive me, If am totally wrong?
Thanks
Sagar

Each of the 5 instances will register itself with the scan listener (using the instance parameter remote_listener).  Thus, the scan listener is "aware" of the database instances on the other two nodes where it is not running.  It can still redirect incoming connections to the local listeners on these nodes (registered as local_listener).
Hemant K Chitale

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