I took the index on the words, transformed the amount to binary, additional 3 zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to convert it to binary, added a few zeros to the eight digits on the binary and received 00000010011 which interprets to 19 https://techonpage.com/story4882328/bip39-phrase-generator-can-be-fun-for-anyone