Yes, it's strange.
Also, n Lower bound for 55459 dropped from 540046 to 1018, and min n for the current test window for it is just 169858. As you know, 55459 is the k with highest density of candidates per given range.
What comes to my mind is "may be" Louie wanted to run quick double check tests on low ranges of that k.
PS: I'm just guessing by putting the pieces together. This might be totally wrong.