I took the index from the words, converted the number to binary, added a few zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to transform it to binary, included 3 zeros to your 8 digits in the binary and acquired 00000010011 which translates to 19 https://mnobookmarks.com/story18882080/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-definition