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Deja vu (Posted on 2020-05-25) Difficulty: 3 of 5
A sequence
142,725,631,254,665,682,354,316,...
is created according to a certain algorithm, for you to discover.

Following your findings, please:
1. Evaluate a9
2. Find the smallest n for which an=an+1

No Solution Yet Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Hints/Tips Hint....a partial spoiler | Comment 1 of 4
Hint:
Ignore all commas. Divide the continuous chain of digits to create an increasing sequence of numbers.
Now solve the d2 puzzle.

  Posted by Ady TZIDON on 2020-05-27 21:08:46
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