I took the index in the words, converted the selection to binary, included a few zeros, calculated the sha256 digest, took the first A part of the hexadecimal to convert it to binary, additional three zeros on the 8 digits on the binary and obtained 00000010011 which interprets to 19 https://socialdosa.com/story8669231/facts-about-bip39-seed-phrase-word-list-revealed