I took the index with the words, converted the range to binary, added 3 zeros, calculated the sha256 digest, took the 1st Component of the hexadecimal to transform it to binary, included three zeros on the eight digits from the binary and acquired 00000010011 which translates to 19 in decimal. https://socialioapp.com/story4441795/facts-about-bip39-seed-phrase-word-list-revealed