I took the index on the words, transformed the variety to binary, included a few zeros, calculated the sha256 digest, took the first Element of the hexadecimal to transform it to binary, included three zeros into the eight digits of your binary and received 00000010011 which translates to 19 in https://www.mediafire.com/file/qad32ryob76naol/pdf-7033-8222.pdf/file