Usually a video with 301 views means it's suddenly exploded virally. YouTube 'stops counting' temporarily at 300 views whilst it verifies that a video is being legitimately viewed by many people in a short space of time, rather than people artificially inflating their viewcount by whatever methods they can.

In a matter of minutes or hours that number will suddenly increase significantly.

So it's an anti-spam measure. There's a short explainer here: http://www.seroundtable.com/youtube-301-views-15347.html