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