I took the index on the words, transformed the amount to binary, additional 3 zeros, calculated the sha256 digest, took the very first part of the hexadecimal to convert it to binary, included a few zeros into the 8 digits with the binary and obtained 00000010011 which translates to 19 https://socialbookmarkgs.com/story18880445/considerations-to-know-about-bip39-seed-phrase-generator