I took the index from the words, transformed the number to binary, additional 3 zeros, calculated the sha256 digest, took the first Section of the hexadecimal to transform it to binary, added 3 zeros towards the 8 digits in the binary and received 00000010011 which translates to 19 in decimal. https://45listing.com/story20927634/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator