Braille system has [[1]] dot patterns.

The Braille system actually consists of 63 different combinations of raised dots, arranged in a grid of up to six dots per cell. This grid pattern allows for the creation of letters, numbers, punctuation, and other symbols that can be read by touch. The Braille system was invented by Louis Braille in the early 19th century and is widely used today by blind and visually impaired individuals to read and write.