I took the index of the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the 1st Portion of the hexadecimal to convert it to binary, additional three zeros for the 8 digits of the binary and got 00000010011 which interprets to 19 in decimal. https://totalbookmarking.com/story19184689/the-2-minute-rule-for-bip39-all-words