I took the index in the words, transformed the quantity to binary, extra three zeros, calculated the sha256 digest, took the primary Portion of the hexadecimal to transform it to binary, added 3 zeros to the 8 digits of your binary and acquired 00000010011 which interprets to 19 in decimal. https://hotbookmarkings.com/story19002514/the-definitive-guide-to-bip39-seed-phrase