Grouping Two Different Coloured Objects

Having three black objects B and one white object W they can be grouped in 7 ways like this:

(BBBW)	(B,BBW)	(B,B,BW)	(B,B,B,W)	(B,BB,W)	(BBB,W)	(BB,BW)

In how many ways can sixty black objects B and forty white objects W be thus grouped?