I took the index on the words, transformed the variety to binary, extra three zeros, calculated the sha256 digest, took the very first part of the hexadecimal to convert it to binary, added a few zeros into the eight digits with the binary and bought 00000010011 which interprets to 19 https://pukkabookmarks.com/story19018918/getting-my-bip39-words-to-numbers-to-work