I took the index of the words, converted the number to binary, extra a few zeros, calculated the sha256 digest, took the initial Element of the hexadecimal to transform it to binary, included a few zeros to the 8 digits of your binary and bought 00000010011 which translates to 19 https://ilovebookmark.com/story18883616/little-known-facts-about-bip39-seed-phrase-list