Bip39 algorithm https://www.plurk.com/p/3hf2syltjx Although it takes advantage of BIP32 method you are able to nevertheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 There is certainly BIP44 Model which some wallet use to the generation of seeds. BIP39 increases wallet protection by generating backups reliable, quick, and immune https://linktr.ee/bip39