I took the index on the words, converted the number to binary, extra three zeros, calculated the sha256 digest, took the 1st Element of the hexadecimal to transform it to binary, additional 3 zeros into the 8 digits from the binary and bought 00000010011 which interprets to 19 in decimal. https://my-social-box.com/story4245316/the-5-second-trick-for-ledger-seed-phrase-bip39