As character names:

U+A7C1 LATIN SMALL LETTER OLD POLISH O character (ꟁ)

As raw characters:

ꟁ

As a string of HTML entities:

ꟁ

Decoder output:

Byte number 1 is decimal 240, hex 0xF0, octal \360, binary 11110000
This is the first byte of a 4 byte sequence.

Byte number 2 is decimal 138, hex 0x8A, octal \212, binary 10001010
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 159, hex 0x9F, octal \237, binary 10011111
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 129, hex 0x81, octal \201, binary 10000001
This is continuation byte 3, expecting 0 more.

U+A7C1	LATIN SMALL LETTER OLD POLISH O
	* used in Old Polish as a nasal vowel
	x (latin small letter o with stroke - 00F8)