(0 15 14 7 4)(1 20 3)(2 13 11 9 5)(6 10 8)(12 18 16)(17 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 2 9)
(0 5 2 15 14 7 4)(1 20 3)(6 10 8)(9 13 11)(12 18 16)(17 21 19)
2: (1 20 3)
(0 5 2 15 14 7 4)(1)(3)(6 10 8)(9 13 11)(12 18 16)(17 21 19)(20)
3: (2 15 5)
(0 5 14 7 4)(1)(2)(3)(6 10 8)(9 13 11)(12 18 16)(15)(17 21 19)(20)
4: (4 14 7)
(0 5 14)(1)(2)(3)(4)(6 10 8)(7)(9 13 11)(12 18 16)(15)(17 21 19)(20)