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Sequence with only 3 numbers (Posted on 2009-03-07) Difficulty: 2 of 5
Trying to define a way to generate the terms of a sequence, and starting with the number 5, I found, surprisingly, that the way I used generated this sequence:

5, 8, 11, 5, 8, 11, 5, 8, 11, ...

And these 3 numbers repeat in this order indefinitely.

Define a simple way to generate this sequence.

See The Solution Submitted by pcbouhid    
Rating: 2.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution WITHOUT MOD | Comment 2 of 11 |

a(n)=5+3*(n-1)-9*int((n-1)/3)

check it - it works


  Posted by Ady TZIDON on 2009-03-07 16:50:19
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