I took the index of the words, converted the variety to binary, additional a few zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, included three zeros to your eight digits of your binary and got 00000010011 which interprets to 19 https://tinybookmarks.com/story19590352/the-ultimate-guide-to-bip39-seed-phrase-mnemonics-generator