package pure nothrow @nogc immutable
auto matrix =
[[[6, 4, 2, 0], [7, 5, 3, 1], [12, 10, 8, 14], [13, 11, 9, 15]], [[13, 9, 4, 14], [6, 15, 8, 10], [11, 0, 1, 5], [7, 2, 12, 3]], [[15, 5, 12, 11], [13, 2, 0, 8], [7, 3, 10, 9], [1, 6, 14, 4]], [[11, 13, 3, 7], [14, 12, 1, 9], [4, 5, 2, 15], [0, 10, 6, 8]], [[10, 2, 5, 9], [15, 4, 7, 0], [6, 11, 14, 3], [8, 12, 1, 13]], [[8, 0, 6, 2], [3, 11, 10, 12], [15, 7, 4, 1], [14, 5, 13, 9]], [[4, 14, 1, 12], [10, 13, 15, 5], [9, 6, 0, 8], [2, 3, 7, 11]], [[3, 12, 7, 13], [9, 1, 14, 11], [8, 15, 5, 2], [6, 4, 0, 10]], [[0, 11, 14, 6], [8, 3, 9, 15], [1, 13, 12, 10], [4, 7, 2, 5]], [[1, 7, 8, 10], [5, 6, 4, 2], [3, 9, 15, 13], [12, 14, 11, 0]]];
Undocumented in source.