If you’re looking for a way to download the entire Online Encylopedia of Integer Sequences, you may come across advice for scraping the site, one sequence at a time. Instead of collecting the sequences one at a time, it might be sufficient to download one of their already collected archives. This file contains the integer sequences and their A-numbers, and this file contains the names of the sequences. No need to stress the OEIS servers when these ready-made archives are ripe for downloading!
I found these files from this page of the OEIS wiki. The reason I’m linking to it here is that finding that page was difficult, and I hope to save you the trouble of finding it for yourself.