I took the index of your words, converted the amount to binary, additional 3 zeros, calculated the sha256 digest, took the 1st Section of the hexadecimal to transform it to binary, included a few zeros for the 8 digits with the binary and obtained 00000010011 which interprets to 19 in https://bookmarkingfeed.com/story18738852/the-5-second-trick-for-ledger-seed-phrase-bip39