I took the index of your words, converted the variety to binary, included a few zeros, calculated the sha256 digest, took the primary Element of the hexadecimal to convert it to binary, added 3 zeros to the 8 digits with the binary and got 00000010011 which interprets to 19 in https://bookmarkindexing.com/story18742996/a-secret-weapon-for-bip39-words-to-numbers