I took the index of the words, converted the range to binary, included a few zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, additional three zeros for the 8 digits in the binary and received 00000010011 which interprets to 19 https://ztndz.com/story21854273/not-known-facts-about-bip39-english-words