I took the index on the words, transformed the amount to binary, included three zeros, calculated the sha256 digest, took the 1st Component of the hexadecimal to convert it to binary, additional 3 zeros to the 8 digits with the binary and received 00000010011 which translates to 19 in decimal. https://bookmarklinkz.com/story18966534/examine-this-report-on-bip39-passphrase