I took the index with the words, transformed the quantity to binary, extra 3 zeros, calculated the sha256 digest, took the first Section of the hexadecimal to convert it to binary, extra a few zeros for the eight digits from the binary and received 00000010011 which translates to 19 in https://meshbookmarks.com/story18859386/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator