I took the index with the words, transformed the number to binary, extra a few zeros, calculated the sha256 digest, took the initial Component of the hexadecimal to transform it to binary, additional a few zeros towards the 8 digits with the binary and got 00000010011 which translates to 19 https://socialupme.com/story4568257/helping-the-others-realize-the-advantages-of-bip39-seed-phrase-mnemonics-generator