S9 LIB  (iota integer)             ==>  list
        (iota* integer1 integer2)  ==>  list

        (load-from-library "iota.scm")

IOTA creates a sequence of integers starting at 1 and ending
at INTEGER (including both).

IOTA* creates a sequence from INTEGER1 up to, but not including,
INTEGER2. Hence IOTA* can be used to create empty sequences. The
procedure assumes INTEGER1 <= INTEGER2.

(iota 7)       ==>  (1 2 3 4 5 6 7)
(iota* 17 21)  ==>  (17 18 19 20)
(iota* 1 1)    ==>  ()
