I took the index with the words, converted the quantity to binary, additional 3 zeros, calculated the sha256 digest, took the primary Element of the hexadecimal to convert it to binary, included three zeros for the 8 digits with the binary and received 00000010011 which translates to 19 in decimal. https://sociallytraffic.com/story3694196/the-5-second-trick-for-ledger-seed-phrase-bip39