I took the index of the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the 1st part of the hexadecimal to convert it to binary, additional three zeros towards the 8 digits on the binary and got 00000010011 which translates to 19 in decimal. https://bbsocialclub.com/story20681360/detailed-notes-on-copyright-wallet-seed-phrase-out-of-bip39