Solution: each pattern below uses the same rule. what is the rule? 2,11,38,119 3,14,47,146 4,17,56,173

2 _ _ _ 3 _ _ _ 4 _ _ _                      add one 
_ 11 _ _ _ 14 _ _ _ 17 _ _                add three
_ _ 38 _ _ _ 47 _ _ _ 56 _                add nine
_ _ _ 119 _ _ _ 146 _ _ _173           add seventeen 

Hope this helps!!!