I took the index in the words, converted the variety to binary, included 3 zeros, calculated the sha256 digest, took the main Portion of the hexadecimal to convert it to binary, added 3 zeros into the eight digits from the binary and obtained 00000010011 which translates to 19 in decimal. https://moodjhomedia.com/story2601948/getting-my-bip39-words-to-numbers-to-work