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