SOLUTION: What is the sum of the series 1^2 � 2^2 � 3^2 + 4^2 + 5^2 � 6^2 � 7^2 + 8^2 + � + 24^2?

Question 314137: What is the sum of the series
1^2 � 2^2 � 3^2 + 4^2 + 5^2 � 6^2 � 7^2 + 8^2 + � + 24^2?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Check the pattern of the "-" and "+" multipliers in front of the square terms.
It's unclear what the pattern is for the numbers between 9 and 24.
1 +
2 -
3 -
4 +
5 +
6 -
7 -
8 +
9 +
.
.
.
24 +
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