I took the index on the words, converted the range to binary, included 3 zeros, calculated the sha256 digest, took the main A part of the hexadecimal to convert it to binary, extra a few zeros on the eight digits of the binary and acquired 00000010011 which interprets to 19 https://socialbookmarkgs.com/story18916165/ledger-seed-phrase-bip39-no-further-a-mystery