I took the index from the words, converted the range to binary, added a few zeros, calculated the sha256 digest, took the 1st Section of the hexadecimal to transform it to binary, additional 3 zeros towards the eight digits in the binary and acquired 00000010011 which interprets to 19 in https://bookmarkgenious.com/story19269209/the-definitive-guide-to-bip39-seed-phrase