I took the index with the words, converted the quantity to binary, included 3 zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to convert it to binary, included 3 zeros towards the eight digits in the binary and got 00000010011 which interprets to 19 in https://bookmark-master.com/story19641941/a-secret-weapon-for-bip39-words-to-numbers