I took the index of your words, transformed the amount to binary, extra three zeros, calculated the sha256 digest, took the very first A part of the hexadecimal to transform it to binary, added three zeros to your 8 digits on the binary and obtained 00000010011 which translates to 19 https://socialmediastore.net/story19468487/the-5-second-trick-for-ledger-seed-phrase-bip39