I took the index of the words, converted the quantity to binary, included a few zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, included 3 zeros to your eight digits on the binary and acquired 00000010011 which translates to 19 https://bookmarkfox.com/story4334396/not-known-factual-statements-about-bip39-explained