I can't say too much, because they are a current client of mine, but I've been doing work with a wholesaler for one of the biggest lotteries here in my country, and they seem to have a LOT of customers who bulk buy lottery tickets in what seems to be patterns. I am talking hundreds of thousands of dollars of lottery tickets per week. Their winning are also along those lines. I don't know about the industry, but these…
I don't believe that odds in favor of a player happen in lotteries, except for rare 'bugs' in the game design, which are fixed as soon as the organizer spots them. A more probable explanation are addicts or money laundering.
http://www.dailymail.co.uk/news/article-2183070/MIT-maths-ge...
If the game is badly designed, some smart cookie will find out and exploit it.