+0  
 
0
1425
3
avatar

4,10,_,82,244,730

 Oct 9, 2014

Best Answer 

 #3
avatar+118723 
+8

1, 2,   3,  4,  5,    6

4,10,__,82,244,730

 

3^1=3

3^2=9

3^3=27

3^4=81

3^5=243

3^n+1

the missing one is 28

 

You beat me by a about a second Alan.    LOL   :)

 Oct 9, 2014
 #1
avatar
0

find series

 Oct 9, 2014
 #2
avatar+33661 
+5

The series can be produced from 3^n + 1.

 

 

n     3^n + 1

1         4

2         10

3         28

4         82

5         244

6         730

 

.

 Oct 9, 2014
 #3
avatar+118723 
+8
Best Answer

1, 2,   3,  4,  5,    6

4,10,__,82,244,730

 

3^1=3

3^2=9

3^3=27

3^4=81

3^5=243

3^n+1

the missing one is 28

 

You beat me by a about a second Alan.    LOL   :)

Melody Oct 9, 2014

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