Find out the next number in the series.
1 , 2, 2 , 7 , 45 , _ ,......
Answer
1 , 2, 2 , 7 , 45 , _ ,......
1^2 +1 2^2-2 2^2 +3 7^2 -4
Next number 45 ^ 2 + 5 = 2030
1 , 2, 2 , 7 , 45 , 2030 , ....
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