As character names:

U+2016 DOUBLE VERTICAL LINE 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 128, hex 0x80, octal \200, binary 10000000
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 150, hex 0x96, octal \226, binary 10010110
This is continuation byte 2, expecting 0 more.

U+2016	DOUBLE VERTICAL LINE
	* used in pairs to indicate norm of a matrix
	x (combining double vertical stroke overlay - 20E6)
	x (parallel to - 2225)
	x (double vertical bar - 23F8)