I took the index with the words, converted the range to binary, extra a few zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, extra 3 zeros into the 8 digits in the binary and bought 00000010011 which interprets to 19 https://bookmark-nation.com/story18702368/the-definitive-guide-to-bip39-seed-phrase