Undefined Character (U+13781)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓞁` `𓞁`
UTF-8 Encoding:	`0xF0 0x93 0x9E 0x81`
UTF-16 Encoding:	`0xD80D 0xDF81`
UTF-32 Encoding:	`0x00013781`

References