What reason do you have to think there IS a pattern?
Here is a news flash for them:
The largest collection of integer sequences available says that no such sequence is known to exist.
Check it out at: The On-Line Encyclopedia of Integer Sequences
Look at the common difference for if it was a geometric or arithmetic sequence, or even a recursive formula there would have to be a distinguishable pattern
just look at the differences:
As you can see there is no common difference, and no possible way for it to be an arithmetic or geometric progression.There is also no way to make a recursive formula for the sequence.