--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


I (16th / alternate)
--------------------12345432----------------------------------------3456-------
----------------1234--------5432--------------------------------3456-----------
------------1234----------------5432------------------------3456---------------
--------1234------------------------5432----------------3456-------------------
----1234--------------------------------5432--------3456-----------------------
1234----------------------------------------54323456---------------------------


II (16th / alternate)
---------------------------------12----3443----21-------------------------------
-------------------------12----34--3412----2143--43----21-----------------------
-----------------12----34--3412--------------------2143--43----21---------------
---------12----34--3412------------------------------------2143--43----21-------
-12----34--3412----------------------------------------------------2143--43-----
---3412--------------------------------------------------------------------2143-


III (16th alternate)
---------------------------------13----2442----31-------------------------------
-------------------------13----24--2413----3142--42----31-----------------------
-----------------13----24--2413--------------------3142--42----31---------------
---------13----24--2413------------------------------------3142--42----31-------
-13----24--2413----------------------------------------------------3142--42-----
---2413--------------------------------------------------------------------3142-


IV (triplet alternet or sweep)
|-------------------------------------------------123------234432------321---:
|-------------------------------------123------234---234123------321432---432:
|-------------------------123------234---234123------------------------------:
|-------------123------234---234123------------------------------------------:
|-123------234---234123------------------------------------------------------:
|----234123------------------------------------------------------------------:

:----------------------------------------------|
:------321-------------------------------------|
:321432---432------321-------------------------|
:------------321432---432------321-------------|
:------------------------321432---432------321-|
:------------------------------------321432----|


-