I took the index of the words, transformed the variety to binary, added 3 zeros, calculated the sha256 digest, took the main A part of the hexadecimal to convert it to binary, added 3 zeros to your 8 digits with the binary and received 00000010011 which translates to 19 in https://expressbookmark.com/story18984919/the-greatest-guide-to-seed-phrase-bip39