A129887 Start with 98, then write down the product of its digits, then add 5; repeat.

98, 72, 77, 49, 54, 20, 25, 10, 15, 5, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5, 10, 0, 5, 5, 10, 0, 10, 0, 5, 5