This property defines the Unicodes which belongs to Mayan Numerals block
Characters like 𝋠,𝋡,𝋢, etc. are listed under Mayan Numerals Block.
21 Characters are present in Mayan Numerals Block starting with the Unicode point U+1D2E0 that represents the character 𝋠.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.