Posted by **karolina** on Thursday, March 8, 2012 at 6:07pm.

HELP!!!! the input is 1 the output is 4 the input is 2 and the output is 7 the input is 3 and the output is 10 the input is 4 and the out put is 13 what is the rule????

- math -
**MIKE**, Thursday, March 8, 2012 at 6:14pm
THINK ITS

addition of an odd number

like

1+3=4

2+5=7

3+7=10

4+9=13

- math -
**Karinna**, Tuesday, March 20, 2012 at 8:46pm
the rule is x3+1

- math -
**genesis**, Tuesday, August 25, 2015 at 7:05pm
input 1,2,3,4,5 output 3,5,9,17,33

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