I took the index of the words, converted the amount to binary, additional three zeros, calculated the sha256 digest, took the primary Section of the hexadecimal to transform it to binary, added three zeros into the eight digits of your binary and received 00000010011 which translates to 19 in decimal. https://hypebookmarking.com/story18641129/detailed-notes-on-copyright-wallet-seed-phrase-out-of-bip39