I took the index in the words, transformed the variety to binary, added 3 zeros, calculated the sha256 digest, took the primary part of the hexadecimal to transform it to binary, additional 3 zeros for the 8 digits of the binary and acquired 00000010011 which interprets to 19 in decimal. https://bookmarkspecial.com/story19012001/the-5-second-trick-for-ledger-seed-phrase-bip39