I realized that everything didn't go exactly as I visualized, so I dediced to grab 1 HDR (non-panorama) at 24mm, just to make sure that I didn't go home empty-handed.
My actual intent was to capture an HDR-panorama of the sunset at Mølen. The sun was setting pretty fast, so it was definitely a good idea to try 5 or 7-image bracketing. 3 was more than enough, as long as you do (preferably) -,-,0 bracket and not -,0,+ to avoid washed out highlights. But since the overall contrast in this type of scenery is quite high, a correct evaluative exposure would leave the shadow parts of the rocks extremely underexposed with a -,-,0. It's fine if you only want to showcase the sky, but in this case, the rocks are actually the motive. So, I ended up going for 5-image bracketing at -,-,0,+,+.
The main issue that occured to me is that, since I didn't actually plan this session (just spontaneously drove out there), I didn't really know the correct camera setting or setup for this situation. So, I ended up spending too much time figuring stuff out, and eventually, the sun disappeared behind the horizon. The sun moved quite fast, so my "neutral" exposure became too dark, making the bracket more like -,-,-,-,0. The longest exposures were at 20-30 seconds, so 1 bracket took some time to capture. So when I reached the other end of the panorama, I was standing in total darkness.
I took 5x7 shots for the panorama (basically 7 vertical HDRs of 5-image bracketings), but since many of the shots turned out entirely black, I would probably end up using 3x7 only. I haven't processed the files for the panorama yet, so I have no idea how it turned out.