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