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Better late than never ...HNY (Posted on 2018-04-01) Difficulty: 3 of 5
Find y satisfying:

2016+2*2015+3*2014+...+2014*3+2015*2 +2016=y(y-1)(y-2)/6

What does HNY stand for?

No Solution Yet Submitted by Ady TZIDON    
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HNY | Comment 1 of 3
Happy New Year?
  Posted by Steve Herman on 2018-04-01 09:26:25
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