I took the index of your words, converted the selection to binary, additional 3 zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to transform it to binary, added three zeros on the 8 digits with the binary and acquired 00000010011 which translates to 19 in https://bbsocialclub.com/story20874870/new-step-by-step-map-for-bip39-english-words