I took the index in the words, converted the variety to binary, extra 3 zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to transform it to binary, extra 3 zeros on the 8 digits of the binary and obtained 00000010011 which translates to 19 in decimal. https://tbookmark.com/story19490788/considerations-to-know-about-bip39-seed-phrase-generator