I took the index in the words, converted the selection to binary, additional three zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to transform it to binary, included a few zeros for the 8 digits of the binary and bought 00000010011 which translates to 19 https://bookmarksystem.com/story18682657/the-ultimate-guide-to-bip39-seed-phrase-mnemonics-generator