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