def generate_tile_urls(x_start, y_start, z, num_tiles=5):
base_url = "https://tile.openstreetmap.org/{z}/{x}/{y}.png"
urls = []
for x in range(x_start, x_start + num_tiles):
for y in range(y_start, y_start + num_tiles):
url = base_url.format(z=z, x=x, y=y)
urls.append(url)
return urls