As character names:

U+2A41 UNION WITH MINUS SIGN character (⩁)

As raw characters:

⩁

As a string of HTML entities:

⩁

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 169, hex 0xA9, octal \251, binary 10101001
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 129, hex 0x81, octal \201, binary 10000001
This is continuation byte 2, expecting 0 more.

U+2A41	UNION WITH MINUS SIGN
	= z notation bag subtraction
	x (multiset union - 228E)