I took the index with the words, transformed the amount to binary, extra 3 zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, additional three zeros to the 8 digits from the binary and got 00000010011 which interprets to 19 in https://thebookmarkking.com/story18822018/the-ultimate-guide-to-bip39-seed-phrase-mnemonics-generator