In each of the following number series only one number is wrong. Find out that wrong number. 4 6 17 54 219 1098

Series: 4, 6, 17, 54, 219, 1098. Pattern: 4×1+2=6, 6×2+5=17, 17×3+3=54, 54×4+3=219, 219×5+3=1098. Wait, let's check: 4×1+2=6, 6×3-1=17, 17×3+3=54, 54×4+3=219, 219×5+3=1098. Actually: 4, (4×1+2)=6, (6×3-1)=17, (17×3+3)=54, (54×4+3)=219, (219×5+3)=1098. The multipliers are 1, 3, 3, 4, 5 - not consistent. Better: 4, 4+2=6, 6+11=17, 17+37=54, 54+165=219... Differences: 2, 11, 37, 165, 879. Second differences: 9, 26, 128, 714. Not clear. Actually: 4×1.5=6, 6×2.83≈17, 17×3.18≈54. Let me try: 4, (4+2)=6, (6×3-1)=17, (17×3+3)=54, (54×4+3)=219. The 6 doesn't fit the pattern. Starting from 17: ×3+3, ×4+3, ×5+3 works. So 6 is the odd one out.