I took the index of your words, converted the variety to binary, extra three zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to convert it to binary, included 3 zeros towards the 8 digits with the binary and obtained 00000010011 which translates to 19 in https://socialbaskets.com/story4409547/new-step-by-step-map-for-ledger-seed-phrase-bip39