Seed Phrase Generator And Checker Github. The sole rationale those letters are listed is to make it easier for our human brains to read through them And maybe memorize our recovery phrase. These words are pulled from a specific list of 2048 words. They can be found in this article https://financex05059.wiki-cms.com/7170994/the_anatomy_of_a_bip39_phrase_entropy_terms_and_safety