I took the index from the words, transformed the selection to binary, included a few zeros, calculated the sha256 digest, took the main A part of the hexadecimal to convert it to binary, added three zeros to the eight digits from the binary and received 00000010011 which translates to 19 https://bookmarkingace.com/story18850456/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator