I took the index of your words, converted the number to binary, included three zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to transform it to binary, added 3 zeros to your 8 digits on the binary and acquired 00000010011 which interprets to 19 in decimal. https://bbsocialclub.com/story21655088/5-simple-techniques-for-bip39-seed-phrase