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