I took the index on the words, converted the quantity to binary, extra 3 zeros, calculated the sha256 digest, took the first Portion of the hexadecimal to convert it to binary, extra three zeros into the 8 digits with the binary and bought 00000010011 which interprets to 19 in decimal. https://gatherbookmarks.com/story19573081/top-guidelines-of-bip39-word-list-pdf