I took the index in the words, transformed the amount to binary, added 3 zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, added three zeros into the eight digits of the binary and acquired 00000010011 which interprets to 19 in https://www.slideserve.com/lewarthbfp/bip39-word-list-explained-your-essential-source-for-creating-secure-purses-in-t