I took the index of the words, transformed the amount to binary, additional three zeros, calculated the sha256 digest, took the 1st Section of the hexadecimal to convert it to binary, included 3 zeros towards the eight digits from the binary and received 00000010011 which interprets to 19 in decimal. https://mysocialfeeder.com/story4479893/top-guidelines-of-bip39-word-list-pdf