The Braille pattern dots-346 ( ⠬ ) is a 6-dot braille cell with the top right and both bottom dots raised, or an 8-dot braille cell with the top right and both lower-middle dots raised.
It is represented by the Unicode code point U+282c, and in Braille ASCII with the plus sign: +.
In unified international braille, the braille pattern dots-346 is used to represent velar nasals, ie /ŋ/, and otherwise as needed.
In the Japanese kantenji braille, the standard 8-dot Braille patterns 578, 1578, 4578, and 14578 are the patterns related to Braille pattern dots-346, since the two additional dots of kantenji patterns 0346, 3467, and 03467 are placed above the base 6-dot cell, instead of below, as in standard 8-dot braille.
This listing includes kantenji using Braille pattern dots-346 for all 6349 kanji found in JIS C 6226-1978.