I took the index of the words, transformed the selection to binary, added 3 zeros, calculated the sha256 digest, took the main A part of the hexadecimal to convert it to binary, added a few zeros into the 8 digits of the binary and obtained 00000010011 which interprets to 19 https://modernbookmarks.com/story18604132/helping-the-others-realize-the-advantages-of-bip39-seed-phrase-mnemonics-generator