Expanding this slightly, how many stations are there where there are two itineraries with the same number of changes to the same destination but departing in opposite directions,
There must be loads, even if one only counts realistic itinaries. Some that springs to mind from personal experiance.
Salisbury to Birmingham/Stockport/Manchester can be done (or at least could be done pre-covid) in a single change via either Basingstoke or Bristol, leaving salisbury in opposite directions
Travel southwards from Cheadle Hulme towards London or Birmingham springs to mind, there are southbound trains from Cheadle hulme, to Wilmslow, Crewe, and Stoke but it's often (but not always) quicker to double back via stockport.
I visit Cambridge once or twice a year, including a visit most years on the august bank holiday, Over the years I've arrived into Cambridge from all three directions and left it via at least two of the three, depending on my time of travel and what engineering works were happening that year. Sometimes one gets a single change from Stockport to Cambridge via Ely, but 2 change itineraries via either London and Doncaster or Peterbourough are also common. I've also done Doncaster and Stevenage before, when Engineering works left both Euston and Ely closed*.
* Virgin told Manchester passengers to travel via York, but provided no advice for Stockport passengers, I figured that if anyone said anything about my ticket i'd say I was taking a reasonable diversion route to London, my normal route to Cambridge and skipping the doubleback.
