GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
HAPBARCODE:= [ [ [ [[-1], [-1, 1]] ] ], [ [ [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[-1], [-1, 2, 0, -2, 1]], [[1, 1, -1], [1, -1, -1, 1]] ], [ [[0], [1]], [[0], [1]], [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[1], [1, -2, 1]], [[-1, -1], [-1, 1]] ], [ [[0], [1]], [[0], [1]], [[1], [1, -2, 1]] ] ], [ [ [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 0, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[1], [1, -2, 2, -2, 1]], [[-1, -1, 0, 1], [-1, 1]] ], [ [[0], [1]], [[0], [1]], [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[1], [1, -2, 1]], [[-1, -1], [-1, 1]] ], [ [[0], [1]], [[0], [1]], [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 0, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[1], [1, -2, 2, -2, 1]], [[-1, -1, 0, 1], [-1, 1]] ], [ [[0], [1]], [[0], [1]], [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 0, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[-1, -1, -1], [-1, 1, -1, 1]], [[1, 2, 2, 1], [1]] ], [ [[0], [1]], [[0], [1]], [[1], [1, -2, 1]] ] ], [ [ [[-1], [-1, 3, -3, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[-1], [-1, 3, -3, 1]], [[1, 1], [1, -2, 1]] ], [ [[0], [1]], [[0], [1]], [[-1], [-1, 3, -3, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 0, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[1, 1, 1], [1, -2, 2, -2, 1]], [[-1, -2, -2, -1], [-1, 1]] ], [ [[0], [1]], [[0], [1]], [[-1], [-1, 3, -3, 1]] ] ], [ [ [[-1], [-1, 1]], [[-1], [-1, 0, 0, 0, 1]], [[1], [1]] ], [ [[0], [1]], [[1, 1, 1], [1, -2, 2, -2, 1]], [[-1, -2, -2, -1], [-1, 1]] ], [ [[0], [1]], [[0], [1]], [[-1], [-1, 3, -3, 1]] ] ], [ [ [[1], [1, -4, 6, -4, 1]] ] ] ] ;