I took the index from the words, converted the quantity to binary, extra a few zeros, calculated the sha256 digest, took the first A part of the hexadecimal to transform it to binary, included three zeros towards the 8 digits of the binary and received 00000010011 which translates to 19 https://olivebookmarks.com/story18905022/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting