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