I took the index on the words, converted the variety to binary, added 3 zeros, calculated the sha256 digest, took the first Section of the hexadecimal to transform it to binary, additional 3 zeros on the 8 digits of your binary and acquired 00000010011 which interprets to 19 in decimal. https://madbookmarks.com/story18823440/helping-the-others-realize-the-advantages-of-bip39-mnemonic-phrase-tool