I took the index from the words, transformed the number to binary, extra three zeros, calculated the sha256 digest, took the primary part of the hexadecimal to transform it to binary, additional a few zeros towards the eight digits of the binary and acquired 00000010011 which translates to 19 in https://wildbookmarks.com/story19154015/the-ultimate-guide-to-bip39-seed-phrase-github