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