I took the index in the words, converted the quantity to binary, extra 3 zeros, calculated the sha256 digest, took the 1st Portion of the hexadecimal to convert it to binary, additional three zeros to the eight digits on the binary and got 00000010011 which translates to 19 in decimal. https://maximusbookmarks.com/story19612864/the-greatest-guide-to-seed-phrase-bip39