I took the index from the words, converted the variety to binary, additional 3 zeros, calculated the sha256 digest, took the 1st Portion of the hexadecimal to convert it to binary, extra three zeros to your eight digits with the binary and obtained 00000010011 which translates to 19 in decimal. https://lingeriebookmark.com/story8645515/a-review-of-bip39-phrase-list