I took the index on the words, transformed the variety to binary, added a few zeros, calculated the sha256 digest, took the initial Element of the hexadecimal to convert it to binary, extra 3 zeros to your eight digits of the binary and acquired 00000010011 which interprets to 19 in https://easiestbookmarks.com/story19556591/bip39-phrase-generator-can-be-fun-for-anyone