I took the index of the words, converted the range to binary, extra three zeros, calculated the sha256 digest, took the very first part of the hexadecimal to convert it to binary, included a few zeros to the 8 digits of the binary and received 00000010011 which interprets to 19 https://echobookmarks.com/story18797391/invalid-bip39-phrase-things-to-know-before-you-buy