I took the index of the words, transformed the amount to binary, included three zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to transform it to binary, included three zeros on the eight digits in the binary and received 00000010011 which interprets to 19 in https://crossbookmark.com/story18883793/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting