I took the index with the words, transformed the quantity to binary, extra three zeros, calculated the sha256 digest, took the first Component of the hexadecimal to convert it to binary, included 3 zeros towards the 8 digits on the binary and bought 00000010011 which translates to 19 in decimal. http://zanevnex175.lowescouponn.com/unlocking-the-power-of-bip39-an-extensive-consider-word-lists-and-secure-pocketbooks