I took the index on the words, transformed the variety to binary, extra a few zeros, calculated the sha256 digest, took the initial Element of the hexadecimal to transform it to binary, added 3 zeros to your 8 digits on the binary and obtained 00000010011 which interprets to 19 in https://bouchesocial.com/story21571577/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase