(0 19 18)(1 7 5)(2 9 4)(3 16 13)(6 11 8)(10 15 12)(14 20 17)
ALLOWS (11/8)-SEQUENCE
1: (1 3 16)
(0 19 18)(1 13 3 7 5)(2 9 4)(6 11 8)(10 15 12)(14 20 17)(16)
2: (3 7 13)
(0 19 18)(1 13 5)(2 9 4)(3)(6 11 8)(7)(10 15 12)(14 20 17)(16)
3: (2 9 4)
(0 19 18)(1 13 5)(2)(3)(4)(6 11 8)(7)(9)(10 15 12)(14 20 17)(16)
4: (6 11 8)
(0 19 18)(1 13 5)(2)(3)(4)(6)(7)(8)(9)(10 15 12)(11)(14 20 17)(16)