West Wall Bricks | Computer Science Department at Princeton University

This brick pattern is located on the west wall of the Computer Science building, and dates back to 1989, when the building was constructed. The pattern is read top to bottom and consists of five 7-bit ASCII values. The vertical lines to the left and right are "framing" bits.

x 1 0 1 0 0 0 0 x x 0 1 1 1 1 0 1 x x 1 0 0 1 1 1 0 x x 1 0 1 0 0 0 0 x x 0 1 1 1 1 1 1 x

This pattern asks the open theoretical computer science question "P=NP?"