I took the index of the words, transformed the quantity to binary, included 3 zeros, calculated the sha256 digest, took the main Section of the hexadecimal to transform it to binary, added 3 zeros to the 8 digits in the binary and bought 00000010011 which translates to 19 in decimal. https://gorillasocialwork.com/story21887253/ledger-seed-phrase-bip39-no-further-a-mystery