Ok...Luckily I am at work so I can go off my handy dandy cheat sheet.
For FL180 to FL290
0 to 179 degrees, Every 2000 feet odd numbers...19000,21000,23000,25000,27000,29000
For 180 to 359 degrees every 2000 feet even.
If you are above Fl290 it is every 4000 feet
I should add there are a lot of areas that are now experimenting with reduced minimums so these rules don't always apply.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.