Find the pattern using differences: 17, 23, 35, 59, 108, 203, 395. First differences: 6, 12, 24, 49, 95, 192. Second differences: 6, 12, 25, 46, 97. This doesn't show a clear pattern. Try another approach: 17 + 23 = 40 (close to 35), 23 + 35 = 58 (close to 59), 35 + 59 = 94 (not close to 108). Let me check if each term after the first two is sum of previous two: 17 + 23 = 40 ≠ 35. Not Fibonacci-style. The pattern might be: each term ≈ previous two terms minus something. At 108, the pattern clearly breaks - should be around 94 if following Fibonacci-style addition.