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1, 6, 15, 28, ... find nth term​
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4 votes
1, 6, 15, 28, ...
find nth term​

User Ignazio
by
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1 Answer

3 votes
45

Add 4 more to what you’re adding by

1+5=6
6+9=15
15+13=28
28+17=45
User DimonZa
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