I took the index with the words, transformed the quantity to binary, included three zeros, calculated the sha256 digest, took the first Element of the hexadecimal to transform it to binary, additional 3 zeros to the 8 digits with the binary and acquired 00000010011 which interprets to 19 in decimal. https://bookmarkfame.com/story19461569/the-invalid-bip39-phrase-diaries