I took the index from the words, converted the range to binary, additional 3 zeros, calculated the sha256 digest, took the 1st part of the hexadecimal to transform it to binary, included three zeros towards the 8 digits from the binary and received 00000010011 which translates to 19 in decimal. https://kingslists.com/story20021470/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator