I took the index with the words, transformed the range to binary, included a few zeros, calculated the sha256 digest, took the initial Component of the hexadecimal to transform it to binary, additional a few zeros on the eight digits on the binary and acquired 00000010011 which translates to 19 https://bookmarklethq.com/story18770034/considerations-to-know-about-bip39-seed-phrase-generator