I took the index from the words, converted the number to binary, extra a few zeros, calculated the sha256 digest, took the main Component of the hexadecimal to transform it to binary, added 3 zeros for the 8 digits from the binary and acquired 00000010011 which interprets to 19 in https://bookmarkforce.com/story18891018/new-step-by-step-map-for-ledger-seed-phrase-bip39