I took the index on the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to convert it to binary, extra three zeros to the eight digits with the binary and received 00000010011 which translates to 19 in https://wildbookmarks.com/story18969702/facts-about-bip39-seed-phrase-word-list-revealed