Let's find the difference between each number. 38-14=24 74-38=36 122-74=48 182-122=60 254-182=72 As you can tell, you're adding 12 to each difference before. The next difference would be 72+12=84. Let's add. 254+84=338 Now the next difference would be 84+12=96. 338+96=434 So, the next two terms are 338 and 434.