I took the index of the words, transformed the selection to binary, additional a few zeros, calculated the sha256 digest, took the 1st Portion of the hexadecimal to convert it to binary, extra a few zeros for the 8 digits from the binary and obtained 00000010011 which translates to 19 https://yourbookmarklist.com/story19192171/examine-this-report-on-bip39-mnemonic-phrase-tool