finding hosts

[MALTE SIMON <malte_simon () hotmail com>]

Hi I want to scan a network with almost filtered hosts who not respont to pings. Somme of them have an example port 
3,5,6 and other open. So I would like to probe port 3,5,6 and Nmap should stop probing if ther is a open Port 3 or 5 
and start a scan with the default port range on this host. 

simply I want just to use Port 3,5,6 and not port 80 for host discovery and then make a normal scan.

Is ther a way to do it in one scan?
                                          
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