I took the index in the words, converted the variety to binary, included three zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, additional 3 zeros to your eight digits on the binary and obtained 00000010011 which interprets to 19 in https://sitesrow.com/story9471333/new-step-by-step-map-for-ledger-seed-phrase-bip39