I took the index on the words, transformed the range to binary, additional three zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, added 3 zeros to the eight digits from the binary and bought 00000010011 which interprets to 19 in https://bookmarksystem.com/story19304413/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator