I took the index with the words, transformed the number to binary, additional three zeros, calculated the sha256 digest, took the main Portion of the hexadecimal to transform it to binary, included three zeros on the 8 digits with the binary and bought 00000010011 which translates to 19 in decimal. https://total-bookmark.com/story18695655/bip39-phrase-generator-can-be-fun-for-anyone