I took the index with the words, transformed the selection to binary, extra a few zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to transform it to binary, added three zeros towards the eight digits of the binary and obtained 00000010011 which interprets to 19 https://bookmarkilo.com/story18680247/the-5-second-trick-for-ledger-seed-phrase-bip39