K2 knot from man and machine paper (with one of its orientation):

PD[X[1, 56, 2, 57], X[2, 160, 3, 159], X[3, 91, 4, 90], X[61, 4, 62, 5], 
 X[154, 6, 155, 5], X[6, 27, 7, 28], X[7, 109, 8, 108], X[31, 8, 32, 9], 
 X[84, 10, 85, 9], X[10, 138, 11, 137], X[11, 120, 12, 121], 
 X[12, 99, 13, 100], X[13, 168, 14, 169], X[167, 14, 168, 15], 
 X[98, 15, 99, 16], X[119, 16, 120, 17], X[138, 18, 139, 17], 
 X[18, 146, 19, 145], X[46, 19, 47, 20], X[20, 39, 21, 40], 
 X[70, 22, 71, 21], X[22, 78, 23, 77], X[23, 52, 24, 53], 
 X[111, 25, 112, 24], X[62, 25, 63, 26], X[153, 27, 154, 26], 
 X[129, 29, 130, 28], X[29, 107, 30, 106], X[30, 128, 31, 127], 
 X[32, 50, 33, 49], X[33, 66, 34, 67], X[81, 35, 82, 34], X[35, 81, 36, 80], 
 X[36, 79, 37, 80], X[68, 37, 69, 38], X[147, 38, 148, 39], 
 X[115, 41, 116, 40], X[94, 42, 95, 41], X[163, 43, 164, 42], 
 X[43, 165, 44, 164], X[44, 96, 45, 95], X[45, 117, 46, 116], 
 X[47, 146, 48, 147], X[83, 48, 84, 49], X[151, 50, 152, 51], 
 X[51, 64, 52, 65], X[112, 54, 113, 53], X[91, 55, 92, 54], 
 X[160, 56, 161, 55], X[134, 58, 135, 57], X[58, 158, 59, 157], 
 X[59, 89, 60, 88], X[60, 132, 61, 131], X[63, 111, 64, 110], 
 X[150, 66, 151, 65], X[82, 68, 83, 67], X[69, 149, 70, 148], 
 X[71, 114, 72, 115], X[72, 93, 73, 94], X[73, 162, 74, 163], 
 X[161, 74, 162, 75], X[92, 75, 93, 76], X[113, 76, 114, 77], 
 X[149, 79, 150, 78], X[85, 126, 86, 127], X[86, 105, 87, 106], 
 X[156, 87, 157, 88], X[132, 89, 133, 90], X[96, 143, 97, 144], 
 X[140, 97, 141, 98], X[100, 122, 101, 121], X[124, 102, 125, 101], 
 X[171, 103, 172, 102], X[103, 1, 104, 172], X[104, 135, 105, 136], 
 X[128, 107, 129, 108], X[152, 109, 153, 110], X[117, 144, 118, 145], 
 X[139, 118, 140, 119], X[169, 123, 170, 122], X[123, 171, 124, 170], 
 X[125, 136, 126, 137], X[155, 130, 156, 131], X[133, 158, 134, 159], 
 X[141, 166, 142, 167], X[165, 142, 166, 143]]