What is the next number in this series - 14; 33; 71; 147; ?

Answer 1

299

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Number=previous number *2+5
147*2+5=299

Answer 2

The answer is 299
It follows the logic:
14 x 2 = 28
28 + 5 = 33
33 x 2 = 66
66 + 5 = 71
71 x 2 = 142
142 + 5 = 147
147 x 2 = 294
294 + 5 = 299