I took the index from the words, transformed the quantity to binary, additional a few zeros, calculated the sha256 digest, took the main Component of the hexadecimal to convert it to binary, included 3 zeros towards the eight digits of the binary and received 00000010011 which interprets to 19 in https://geilebookmarks.com/story18782515/bip39-seed-phrase-mnemonics-generator-an-overview