I took the index of your words, transformed the range to binary, extra 3 zeros, calculated the sha256 digest, took the main Portion of the hexadecimal to convert it to binary, added three zeros to the 8 digits on the binary and received 00000010011 which interprets to 19 in decimal. https://socialclubfm.com/story9406308/fascination-about-invalid-bip39-phrase