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Provide the next number (Posted on 2016-09-18) Difficulty: 1 of 5
What follows
46,79,1012,1315,1618, ...?

No Solution Yet Submitted by Ady TZIDON    
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Solution that, I guess, was hint enough Comment 2 of 2 |
1921

The concatenations of the members of two arithmetic series, each with an increment of 3:

4, 7, 10, 13, 16, 19, ...

6, 9, 12, 15, 18, 21, ...

  Posted by Charlie on 2016-09-24 13:11:25
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