No. In general, rims built for low spoke counts are much taller and beefier than rims built for higher spoke counts. You might get away with lacing a 16 hole hub to a 32 hole Velocity Deep-V (for instance), but lacing a 20-hole hub to a 36-hole rim is a job for an expert wheelbuilder. You'll need many different spoke lengths to make it work- I'm sure there's some sort of program out there to calculate all of the lengths, but it's a job I would only try on a dare.