Find the wrong term in the given series:
2, 7, 18, 45, 99, 209, 431
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6
(2*2 + 3) = 7
(7*2 + 5) = 19
(19*2 + 7) = 45
(45*2+9) = 99
(99*2+11) = 209
(209*2+13) = 431
so, wrong term is 18.
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2
wrong term is 18
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