I took the index from the words, transformed the number to binary, extra 3 zeros, calculated the sha256 digest, took the 1st Component of the hexadecimal to transform it to binary, extra 3 zeros on the 8 digits of your binary and bought 00000010011 which interprets to 19 in decimal. https://thebookmarkfree.com/story18960241/the-invalid-bip39-phrase-diaries