I took the index on the words, transformed the amount to binary, included a few zeros, calculated the sha256 digest, took the initial Element of the hexadecimal to convert it to binary, extra a few zeros towards the eight digits from the binary and obtained 00000010011 which interprets to 19 https://socialnetworkadsinfo.com/story20228095/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting