I took the index from the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the main Section of the hexadecimal to convert it to binary, additional a few zeros into the 8 digits on the binary and got 00000010011 which interprets to 19 in https://bookmarkindexing.com/story19364857/considerations-to-know-about-bip39-seed-phrase-generator