I took the index on the words, converted the selection to binary, included 3 zeros, calculated the sha256 digest, took the main Element of the hexadecimal to convert it to binary, included a few zeros for the eight digits of the binary and acquired 00000010011 which interprets to 19 in https://bookmarkpagerank.com/story19037630/new-step-by-step-map-for-ledger-seed-phrase-bip39