I took the index of the words, converted the quantity to binary, additional three zeros, calculated the sha256 digest, took the 1st Component of the hexadecimal to transform it to binary, included a few zeros to your eight digits of the binary and got 00000010011 which interprets to 19 in https://bookmarkilo.com/story19486531/considerations-to-know-about-bip39-word-list-pdf