I took the index from the words, converted the amount to binary, additional a few zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, additional three zeros for the eight digits of the binary and got 00000010011 which interprets to 19 https://bookmarksfocus.com/story4370876/helping-the-others-realize-the-advantages-of-bip39-mnemonic-phrase-tool