Yeah, that is very common. As Herbs & Suds said above the number of fingers per leaf and their numerical progression are indicators of nothing really, it doesn't have any relevance to being an auto or photo.
Some strains tend to have more fingers per leaf, some slightly less, but they all progress more or less the same. They usually go from one to three, then three to five and so and so forth, but it's also very common for them to go from one to four, or one to five, or from three to six, or seven, etc.
But to answer your question it doesn't indicate anything about the strain.