I took the index in the words, transformed the range to binary, added 3 zeros, calculated the sha256 digest, took the first Section of the hexadecimal to transform it to binary, extra a few zeros for the eight digits of the binary and acquired 00000010011 which interprets to 19 in https://socialfactories.com/story4953788/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase