I took the index in the words, transformed the selection to binary, extra three zeros, calculated the sha256 digest, took the initial Portion of the hexadecimal to transform it to binary, extra 3 zeros to the 8 digits of the binary and obtained 00000010011 which interprets to 19 in decimal. https://bookmarkplaces.com/story18810413/facts-about-bip39-seed-phrase-word-list-revealed