I took the index on the words, converted the variety to binary, added 3 zeros, calculated the sha256 digest, took the first Portion of the hexadecimal to convert it to binary, additional a few zeros towards the eight digits from the binary and obtained 00000010011 which translates to 19 in https://fatallisto.com/story8791800/considerations-to-know-about-bip39-seed-phrase-generator