I took the index in the words, converted the range to binary, additional three zeros, calculated the sha256 digest, took the initial Portion of the hexadecimal to transform it to binary, added a few zeros towards the eight digits of the binary and acquired 00000010011 which interprets to 19 in https://dmozbookmark.com/story19497888/invalid-bip39-phrase-things-to-know-before-you-buy