I just flew from o'hare to lga on united flight 682 on a new aircraft. It had the strangest seat numbering and was wondering if there was any explanation for this.

It went from row 1-2 then 6-8 skippin row 9 and then jumped from row 11 to row 20 or something like that. I should've written it down exactly, but it really made no sense.

i could understand if it was maybe an older plane and they refit the rows or something, but this looked pretty new.

Any thoughts for this?