I took the index on the words, transformed the range to binary, included a few zeros, calculated the sha256 digest, took the main Element of the hexadecimal to convert it to binary, extra a few zeros towards the 8 digits in the binary and received 00000010011 which translates to 19 https://royalbookmarking.com/story18943616/new-step-by-step-map-for-bip39-english-words