3.7.0.16.10.1.16
These numbers represent the number of sovereign capital cities in the world starting with this letter. E has 0, A has 16 and so on....
(with help from Gossguy)
The only number you have to find out is "N" and there are 10 capitals: Nairobi, Nassau, Naypyidaw, N'Djamena, New Delhi, Ngerulmud, Niamey, Nicosia, Nouakchott and Nuku'alofa. I hope it's clear enough :)
'Gassu69..........Congratulations 'Gassu69' although you did not have to solve it so quick. You have now won a 'CHALLENGE GOLD MEDAL' and even if it is only an honorary award you deserve it. Congratulations again.