This seed hides a Woodland Mansion about 700 blocks away from spawn. Head southeast from your spawn point (across a lake), until you find a village. Head a little further in the same direction, and you’ll see the Woodland Mansion across a small river.
This seed is great because you can use the village as a base to explore the nearby mansion. But it takes a bit to reach the village in the first place, and you might need more than what’s in the village to take on the mobs inside the mansion.