I took the index of your words, transformed the number to binary, added a few zeros, calculated the sha256 digest, took the first A part of the hexadecimal to transform it to binary, extra three zeros on the eight digits on the binary and obtained 00000010011 which translates to 19 https://adsbookmark.com/story18986361/examine-this-report-on-bip39-mnemonic-phrase-tool