What kind of sequence is the pattern 1, 6, 7, 13, 20, ...?

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1 Answer

It is an addition sequence.  You add the 2 digits to get the next one.

1, 6, 7, 13, 20, ...?

1 + 6 = 7

6 + 7 = 13,

7 + 13 = 20

13 + 20 = 33 etc.

 

by Level 10 User (55.7k points)

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