I took the index on the words, converted the number to binary, extra 3 zeros, calculated the sha256 digest, took the very first Component of the hexadecimal to transform it to binary, included a few zeros towards the 8 digits with the binary and received 00000010011 which translates to 19 https://guidemysocial.com/story4191353/little-known-facts-about-bip39-seed-phrase-list