Congressional apportionament question

Inspired by this thread.

Is there any requirement that a state divide itself into as many approximately equal districts as it has seats in the House? Could a state with two or three seats elect two or three at-large representatives? Could New York divide itself into eight districts and distribute 29 House seats among them by population?

Federal law currently requires single-member districts. Before that, even larger states would occasionally have an at-large representative or two.

Didn’t NYS have to elect all of it’s Congressional reps at-large one year because the legislature couldn’t agree on new electoral districts?