Returns the nth element of a list
(nth n lst)
Arguments
The number of the element to return from the list (zero is the first element).
The list.
Return Values
The nth element of lst. If n is greater than the highest element number of lst, nth returns nil.
Examples
Command: (nth 3 '(a b c d e))
D
Command: (nth 0 '(a b c d e))
A
Command: (nth 5 '(a b c d e))
nil
