I took the index on the words, transformed the amount to binary, added 3 zeros, calculated the sha256 digest, took the first Section of the hexadecimal to transform it to binary, additional 3 zeros for the eight digits of the binary and acquired 00000010011 which interprets to 19 in decimal. https://bookmarklayer.com/story19049243/5-simple-techniques-for-bip39-seed-phrase