I took the index with the words, transformed the number to binary, extra three zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, additional three zeros for the 8 digits of the binary and acquired 00000010011 which translates to 19 in https://bookmarkprobe.com/story19214469/a-review-of-bip39-phrase-list