I took the index with the words, converted the range to binary, extra three zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to transform it to binary, extra 3 zeros to the 8 digits in the binary and bought 00000010011 which interprets to 19 in https://captainbookmark.com/story18979523/not-known-facts-about-bip39-english-words