There is no country that never uses the number 6.
You need to check compression on #6.
This missing number is 5
The spacing is 6 1+6=7 7+6=13 13+6=19 19+6=25 so the missing number in the sequence is 13
There is nothing missing here. If you are asking what end numbers are are missing in the front is 6 and in the very back is 9.
6
0 is the missing number.
103
4
dont know
14
The telephone country code 00316 is used for mobile phones in the Netherlands. In this format, "0031" is the country code for the Netherlands, and "6" indicates a mobile phone number. When dialing from abroad, you would use +31 6 followed by the local mobile number.
The next number in the sequence is... 360.