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Factorial Ratio Sum Puzzle (Posted on 2015-08-04) Difficulty: 3 of 5
Define:
A(k) = k! + (k+1)! + (k+2)!, and:

B(n) = Σk=1 to n (k+2)/A(k)

Evaluate:

Limit B(n)
n → ∞

No Solution Yet Submitted by K Sengupta    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
more demonstration than proofxdog2015-08-04 10:30:53
Solutioncomputer solution: It quickly convergesCharlie2015-08-04 09:14:25
Some Thoughtsa logical guess, not a proofAdy TZIDON2015-08-04 07:53:09
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