I was able to find the difference but I’m only needing help with a Recursive function and a Explicit function, The top first one is: 3, 7, 11, 15, 19, 23, 27, 31 please and thank you for who helps me with this

I was able to find the difference but Im only needing help with a Recursive function and a Explicit function The top first one is 3 7 11 15 19 23 27 31 please a class=