I took the index with the words, transformed the number to binary, added a few zeros, calculated the sha256 digest, took the initial Portion 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 https://ilovebookmarking.com/story19144173/fascination-about-invalid-bip39-phrase