I took the index with the words, transformed the number to binary, added three zeros, calculated the sha256 digest, took the first A part of the hexadecimal to convert it to binary, extra 3 zeros on the 8 digits of the binary and received 00000010011 which translates to 19 in https://thebookmarkid.com/story18887356/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator