technically it is not a polyrythmic pattern as only the 16 line phrase completes its cycle
Note that I applied a glide command GF on every note in the pattern.
The first time the notes play they get triggered like normal, because nothing is sustained/looping/gliding yet.
When the pattern loops back around and the (still playing) notes are encountered again, the glide command prevents them from retriggering and simply lets the phrase continue like a looped/sustained note.
So in this particular example the pattern length is actually quite irrelevant, and the phrases will continue to play and loop out of phase until they all eventually cycle back around in sync again.
You can even reduce the pattern length to 1 line and it will sound the same.
I didn’t bother to do the calculations myself, but yeah, it’ll take quite a while before everything syncs back up again 
Cheers.