I took the index from the words, converted the number to binary, added three zeros, calculated the sha256 digest, took the very first A part of the hexadecimal to convert it to binary, additional 3 zeros into the eight digits with the binary and obtained 00000010011 which translates to 19 https://tinybookmarks.com/story18855184/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase