[math-fun] Dupes in OEIS?

Is there supposed to be a difference between https://oeis.org/A206398 and https://oeis.org/A000793 ? (This came to my attention when I remembered a puzzle I invented as a kid: how many times a text might need to be typed on a typewriter with hammers re-soldered in a random order to get the desired result, given the number of the typewriter keys.) Thanks, Leo