I took the index with the words, transformed the selection to binary, additional 3 zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to convert it to binary, extra 3 zeros to the eight digits of your binary and bought 00000010011 which interprets to 19 in https://macrobookmarks.com/story19047617/not-known-facts-about-bip39-english-words