I took the index of the words, transformed the quantity to binary, added three zeros, calculated the sha256 digest, took the first Section of the hexadecimal to transform it to binary, included a few zeros to the eight digits from the binary and received 00000010011 which interprets to 19 in https://exactlybookmarks.com/story18773560/new-step-by-step-map-for-ledger-seed-phrase-bip39