I took the index of the words, converted the amount to binary, included a few zeros, calculated the sha256 digest, took the initial Element of the hexadecimal to convert it to binary, extra a few zeros into the eight digits on the binary and got 00000010011 which translates to 19 https://gogogobookmarks.com/story19020886/the-2-minute-rule-for-bip39-all-words