I took the index in the words, converted the variety to binary, extra a few zeros, calculated the sha256 digest, took the first A part of the hexadecimal to convert it to binary, extra three zeros on the eight digits from the binary and received 00000010011 which interprets to 19 https://echobookmarks.com/story18802489/little-known-facts-about-bip39-seed-phrase-list