Mersenne: missing exponents?

[Achim Passauer]

Hi all,   I was a bit astonished this morning (0500 UTC) when I saw that about 50.000 exponents have been cleared since the last database synch. A few days ago there were about 53.000 to 54.000 of them. Were have 3.000 to 4.000 exponents gone? Any explanation?   Regards Achim