As character names:

U+1D671 MATHEMATICAL MONOSPACE CAPITAL B character (𝙱)

As raw characters:

𝙱

As a string of HTML entities:

𝙱

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 157, hex 0x9D, octal \235, binary 10011101
This is continuation byte 1, expecting 2 more.

Byte number 3 is decimal 153, hex 0x99, octal \231, binary 10011001
This is continuation byte 2, expecting 1 more.

Byte number 4 is decimal 177, hex 0xB1, octal \261, binary 10110001
This is continuation byte 3, expecting 0 more.

U+1D671	MATHEMATICAL MONOSPACE CAPITAL B
	# <font> 0042 latin capital letter b