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In the following number series only one number is wrong. Find out the wrong number.
The pattern followed is :
2 $$\times 1 + 2$$ = 4
4Â $$\times 2 + 3$$ =Â 11
11Â $$\times 3 + 4$$ =Â 37
37Â $$\times 4 + 5$$ =Â 153 $$\neq 151$$
153Â $$\times 5 + 6$$ =Â 771
771Â $$\times 6 + 7$$ =Â 4633
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