The art of computer programming is not Donald Knuth's only art to master... Actually vol. 4b of TAOCP has a (combinatorial) exercise about the possible configu

The art of computer programming is not Donald Knuth's only art to master... Actually vol. 4b of TAOCP has a (combinatorial) exercise about the possible configuration settings of DK's private organ; I think I saw it near page 300 or so.