Bit of background.
Boeing Statement
The subject data is the Landing Climb Limit Weight, which is the more limiting of Approach Climb Limit Weight and Landing Climb Limit Weight. The Approach Climb is based on a 2.1% gradient with one engine inoperative, gear up, approach flaps, and VREF+5. The Landing Climb is based on a 3.2% gradient with all engines operating, gear down, landing flaps, and VREF. The weights in the tables are mostly limited by Approach Climb, except at high altitude and cold temperatures where the weights are limited by Landing Climb. The purpose of these tables is to support the Overweight Landing checklist.