TR workout search has certain phrases to remember if you look for something specific.
For this special purpose, magic is in:
two 8-min
,three 8-min
,four 8-min
two 16-min
,three 16-min
,four 16-min
As pedantic person, I find solace there is pattern. As software developer, I find this pattern not as helpful as it can be → Z4/4x16
would carry so much more meaning
EDIT: if you are looking for training plans based on these progressions, look for Polarized Base and Build. Unfortunately TR dropped feature that enabled switching Plan Builder generated plan phases to those plans. Now you have to manually add to calendar.