+0  
 
0
53
1
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5 – 8 – 11/3 – 14/5 – 17/7 – 20/9

 Aug 23, 2022
 #1
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0

∑ [ (-3n  -  2) / (2n  -  3)], n, 1, 6== - 4447 / 315

 Aug 23, 2022

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