Yeah, okay, kreely got it. To a mathematician versed in permutations, this particular sequence is the cyclic form of a permutation from a given key in dvorak to its equivalent in qwerty.
What this means is that if you have a dvorak layout, but only know how to type in qwerty, you can look up the key you want, and hit the one just to the right of it in this sequence. If you reach a paren, then circle around to the other end of that set. To translate the other way, move one letter to the left.
And note that 'a' and 'm' are a dvorak learner's best friend if you're used to qwerty. Those two keys don't move.