I took the index from the words, converted the variety to binary, extra a few zeros, calculated the sha256 digest, took the main Element of the hexadecimal to transform it to binary, included a few zeros on the eight digits from the binary and received 00000010011 which interprets to 19 https://top100bookmark.com/story19070790/helping-the-others-realize-the-advantages-of-bip39-mnemonic-phrase-tool