I took the index with the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the primary Section of the hexadecimal to transform it to binary, included a few zeros to your eight digits from the binary and received 00000010011 which translates to 19 in https://socialupme.com/story4485843/the-5-second-trick-for-ledger-seed-phrase-bip39