I took the index on the words, converted the range to binary, extra 3 zeros, calculated the sha256 digest, took the very first part of the hexadecimal to convert it to binary, extra three zeros towards the eight digits with the binary and acquired 00000010011 which translates to 19 in https://tripsbookmarks.com/story18876493/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting