Favites abdita - Larger star coral
ID based on the 5th photo in this link:
''Favites abdita'', also known as the larger star coral, is a species of stony coral in the family Merulinidae. It is native to the Indo-Pacific region and its range extends from East Africa and the Red Sea through the Indian Ocean to the Western Pacific Ocean. The International Union for Conservation of Nature has rated its conservation status as being "near-threatened".