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## jesusfreak Find the first 5 terms of the sequence: a1=1, an=4an-1-1 2 years ago 2 years ago

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1. satellite73

multiply by 4, subtract 1 so for example $a_2=4\times a_1-1=4\times 1-1=4-1=3$

2. satellite73

and $a_3=4\times a_2-1=4\times 3-1=12-1=11$