I took the index in the words, transformed the quantity to binary, additional a few zeros, calculated the sha256 digest, took the main Element of the hexadecimal to convert it to binary, extra a few zeros for the eight digits with the binary and acquired 00000010011 which interprets to 19 https://businessbookmark.com/story4933478/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting