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