No, it's definitely not a plane or a satellite. The frequencies of their light waves down here are much longer than those of the stars.
I did try to find some sort of pattern in it, but I haven't found anything of significance. I even tried doing both arithmetic and transforming the sequences, and haven't found a pattern. I was hoping someone here might recognize them. If someone is out there going through the effort of making a star flash Morse code, there's a message to be found in it.
Even if it does turn out to be the equivalent of "Boy I can't believe you wasted all that time decoding this"