I took the index with the words, converted the quantity to binary, additional three zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, additional 3 zeros on the eight digits on the binary and obtained 00000010011 which translates to 19 in https://bookmarkjourney.com/story18926602/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase