I took the index in the words, converted the amount to binary, additional 3 zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to transform it to binary, extra three zeros to your 8 digits in the binary and got 00000010011 which interprets to 19 in decimal. https://allbookmarking.com/story18910344/the-invalid-bip39-phrase-diaries