I took the index from the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the main Component of the hexadecimal to transform it to binary, added 3 zeros on the 8 digits on the binary and acquired 00000010011 which interprets to 19 in decimal. https://allbookmarking.com/story18897760/bip39-seed-phrase-fundamentals-explained