I took the index of your words, transformed the selection to binary, included 3 zeros, calculated the sha256 digest, took the 1st part of the hexadecimal to transform it to binary, included three zeros towards the 8 digits from the binary and acquired 00000010011 which interprets to 19 in decimal. https://bookmarkrange.com/story20246129/examine-this-report-on-bip39-passphrase