This fall, I went to plot the radial probability function of the 4s orbital and realized that I couldn't find the radial function of the 4s orbital in any of my chemistry (or physics) books. I asked a p-chemist friend for help and we realized that every book that the two of us owns only plots the orbitals to a value of principle quantum number n=3. A google search actually wasn't a lot of help.
Does anyone happen to have the functional form of the radial function for a 4s orbital? If you share, I'll post my excel spreadsheet that calculates these. (It's likely to end up In the past, I've had students plot the wavefunction and RPF of the different orbitals as a function of r. I noticed that Maggie also has n=1 to 3 in her H atom radial factors LO - https://www.ionicviper.org/class-activity/h-atom-radial-factors.)