I took the index in the words, converted the range to binary, extra a few zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to convert it to binary, added three zeros on the eight digits from the binary and bought 00000010011 which translates to 19 https://geilebookmarks.com/story18883533/the-ultimate-guide-to-bip39-seed-phrase-github