I took the index on the words, transformed the range to binary, included a few zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to convert it to binary, additional a few zeros to the eight digits of the binary and got 00000010011 which translates to 19 https://bookmarksfocus.com/story4364935/examine-this-report-on-bip39-mnemonic-phrase-tool