The numbers are counting down by 1 each step.<br><br>&bull; Before 19 comes 20 (19 + 1).<br>&bull; After 16 comes 15, then 14 (16 - 1 = 15).<br><br>The pattern: 20, 19, 18, 17, 16, 15, 14.<br><br>Final Answer: 20, 15