Maybe the answer to this question sheds some light on that: http://cstheory.stackexchange.com/questions/9639/how-did-knuth-derive-a http://cstheory.stackexchang

Maybe the answer to this question sheds some light on that: http://cstheory.stackexchange.com/questions/9639/how-did-knuth-derive-a http://cstheory.stackexchange.com/questions/9639/how-did-knu...