read `RectTile.txt`: K:=5: print(`The first`, K, `bi-weighted-generating functions for the number of tilings of an m by n rectangle by rectangles, according to the bi-weight [number of horiz. edges, number of vertical edges is`): lprint([seq(Fmxw1w2(m,x,w1,w2),m=1..K)]): print(``): print(`------------------`): print(``): print(`This took`, time(), `seconds. `): quit: