Just copied what I saw on digitaltruth.com :-)
Recipes & dev times using Film Ilford Pan F+ 50
Ilford Pan F+ 50 at 100 in Agfa Rodinal 1:25
12 minutes at 20°C/68.0°F
Ilford Pan F+ 50 at 64 in Agfa Rodinal 1:50
12 minutes at 20°C/68.0°F
Recipe found, as usual, here: https://www.digitaltruth.com/devchart.php?Film=...
Ilford Pan F+ 50 in Agfa Rodinal 1:50
11 minutes at 20°C/68.0°F
Pre-soak for a few minutes, 60 seconds continuous agitation, followed by 10 ...
Ilford Pan F+ 50 in Agfa Rodinal 1+25
9 minutes at 20°C/68.0°F
No pre-soaking, continuous agitation during the first minute, then tilting f...
Ilford Pan F+ 50 in Agfa Rodinal 1+50
11 minutes at 20°C/68.0°F
Agitate the first minute, then agitate for 10 seconds every in minute.
