I took the index with the words, transformed the amount to binary, extra a few zeros, calculated the sha256 digest, took the first Element of the hexadecimal to convert it to binary, added three zeros for the 8 digits on the binary and acquired 00000010011 which translates to 19 in https://bookmarkspy.com/story20301587/new-step-by-step-map-for-ledger-seed-phrase-bip39