I took the index of the words, transformed the quantity to binary, extra three zeros, calculated the sha256 digest, took the initial part of the hexadecimal to convert it to binary, added three zeros to the eight digits from the binary and acquired 00000010011 which interprets to 19 in decimal. https://social-galaxy.com/story4355770/bip39-phrase-generator-can-be-fun-for-anyone