I took the index on the words, transformed the range to binary, added 3 zeros, calculated the sha256 digest, took the main Section of the hexadecimal to convert it to binary, extra 3 zeros for the eight digits with the binary and bought 00000010011 which interprets to 19 in decimal. https://bookmarkbirth.com/story18854020/the-invalid-bip39-phrase-diaries