68
8 is the first term
11 is the second
14 is the third term
Each of these numbers are added by 3
So 8 + 3 = 11
11 = 3 = 14
And so on.
Explanation:
8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,56,59,62,65,68
The numbers below are the terms ^
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
The 21st term is 68
