perplexus.info :: Sequences : Deja vu

Deja vu (Posted on 2020-05-25)

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 a_n=a_n+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.)

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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