I took the index in the words, converted the amount to binary, extra 3 zeros, calculated the sha256 digest, took the primary A part of the hexadecimal to convert it to binary, extra 3 zeros for the 8 digits in the binary and received 00000010011 which interprets to 19 in https://get-social-now.com/story4162693/considerations-to-know-about-bip39-word-list-pdf